From 134ba858f0842ab9335c0e1c19c10269a535abf3 Mon Sep 17 00:00:00 2001
From: Lokeshranjan8 <lokesh.ranjan.phe23@itbhu.ac.in>
Date: Tue, 7 Jan 2025 23:28:08 +0530
Subject: [PATCH 01/13] feat: add c implementation for
 stats/base/dists/signrank/pdf

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: passed
  - task: lint_markdown
    status: passed
  - task: lint_package_json
    status: passed
  - task: lint_repl_help
    status: na
  - task: lint_javascript_src
    status: passed
  - task: lint_javascript_cli
    status: na
  - task: lint_javascript_examples
    status: na
  - task: lint_javascript_tests
    status: passed
  - task: lint_javascript_benchmarks
    status: passed
  - task: lint_python
    status: na
  - task: lint_r
    status: na
  - task: lint_c_src
    status: passed
  - task: lint_c_examples
    status: passed
  - task: lint_c_benchmarks
    status: passed
  - task: lint_c_tests_fixtures
    status: na
  - task: lint_shell
    status: na
  - task: lint_typescript_declarations
    status: na
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---

---
type: pre_push_report
description: Results of running various checks prior to pushing changes.
report:
  - task: run_javascript_examples
    status: na
  - task: run_c_examples
    status: na
  - task: run_cpp_examples
    status: na
  - task: run_javascript_readme_examples
    status: na
  - task: run_c_benchmarks
    status: na
  - task: run_cpp_benchmarks
    status: na
  - task: run_fortran_benchmarks
    status: na
  - task: run_javascript_benchmarks
    status: na
  - task: run_julia_benchmarks
    status: na
  - task: run_python_benchmarks
    status: na
  - task: run_r_benchmarks
    status: na
  - task: run_javascript_tests
    status: na
---
---
 .../stats/base/dists/signrank/pdf/README.md   |  96 ++++++++++
 .../dists/signrank/pdf/benchmark/benchmark.js |  49 +++--
 .../pdf/benchmark/benchmark.native.js         |  89 +++++++++
 .../dists/signrank/pdf/benchmark/c/Makefile   | 146 +++++++++++++++
 .../signrank/pdf/benchmark/c/benchmark.c      | 141 +++++++++++++++
 .../stats/base/dists/signrank/pdf/binding.gyp | 170 ++++++++++++++++++
 .../dists/signrank/pdf/examples/c/Makefile    | 146 +++++++++++++++
 .../dists/signrank/pdf/examples/c/example.c   |  41 +++++
 .../base/dists/signrank/pdf/include.gypi      |  53 ++++++
 .../stdlib/stats/base/dists/signrank/pdf.h    |  38 ++++
 .../base/dists/signrank/pdf/lib/native.js     |  70 ++++++++
 .../base/dists/signrank/pdf/manifest.json     |  82 +++++++++
 .../base/dists/signrank/pdf/package.json      |   3 +
 .../base/dists/signrank/pdf/src/Makefile      |  70 ++++++++
 .../stats/base/dists/signrank/pdf/src/addon.c |  23 +++
 .../stats/base/dists/signrank/pdf/src/main.c  | 104 +++++++++++
 .../dists/signrank/pdf/test/test.native.js    | 123 +++++++++++++
 17 files changed, 1415 insertions(+), 29 deletions(-)
 create mode 100644 lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.native.js
 create mode 100644 lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/c/Makefile
 create mode 100644 lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/c/benchmark.c
 create mode 100644 lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/binding.gyp
 create mode 100644 lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/examples/c/Makefile
 create mode 100644 lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/examples/c/example.c
 create mode 100644 lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/include.gypi
 create mode 100644 lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/include/stdlib/stats/base/dists/signrank/pdf.h
 create mode 100644 lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/lib/native.js
 create mode 100644 lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/manifest.json
 create mode 100644 lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/Makefile
 create mode 100644 lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/addon.c
 create mode 100644 lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/main.c
 create mode 100644 lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/test/test.native.js

diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/README.md b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/README.md
index 00c29246c2eb..7429c3549c15 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/README.md
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/README.md
@@ -126,6 +126,102 @@ for ( i = 0; i < 10; i++ ) {
 
 <!-- /.examples -->
 
+<!-- C interface documentation. -->
+
+* * *
+
+<section class="c">
+
+## C APIs
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- C usage documentation. -->
+
+<section class="usage">
+
+### Usage
+
+```c
+#include "stdlib/stats/base/dists/signrank/pdf.h"
+```
+
+#### stdlib_base_dists_signrank_cdf( x, n )
+
+Evaluates the probability density function (PDF) of the Wilcoxon signed rank test statistic with `n` observations.
+
+```c
+double out = stdlib_base_dists_signrank_pdf( 7.0, 9 );
+// returns ~0.01
+```
+
+The function accepts the following arguments:
+
+-   **x**: `[in] double` input value.
+-   **n**: `[in] double` number of observations.
+
+```c
+double stdlib_base_dists_signrank_cdf( double x, const double n );
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+</section>
+
+<!-- /.notes -->
+
+<!-- C API usage examples. -->
+
+<section class="examples">
+
+### Examples
+
+```c
+#include "stdlib/stats/base/dists/signrank/pdf.h"
+#include "stdlib/math/base/special/ceil.h"
+#include <stdlib.h>
+#include <stdio.h>
+
+static double random_uniform( const double min, const double max ) {
+    double v = (double)rand() / ( (double)RAND_MAX + 1.0 );
+    return min + ( v*(max-min) );
+}
+
+int main( void ) {
+    double n;
+    double x;
+    double y;
+    int i;
+
+    for ( i = 0; i < 25; i++ ) {
+        x = random_uniform( 0, 30.0 );
+        n = stdlib_base_ceil(random_uniform( 1, 30.0 ));
+        y = stdlib_base_dists_signrank_pdf( x, n );
+        printf( "x: %lf, n: %lf, F(x;n): %lf\n", x, n, y );
+    }
+}
+```
+
+</section>
+
+<!-- /.examples -->
+
+</section>
+
+<!-- /.c -->
+
 <!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
 
 <section class="related">
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.js b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.js
index 6e8750f4cbb1..3aa3b0ddbb62 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.js
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.js
@@ -20,53 +20,44 @@
 
 // MODULES //
 
+var resolve = require( 'path' ).resolve;
 var bench = require( '@stdlib/bench' );
+var Float64Array = require( '@stdlib/array/float64' );
 var randu = require( '@stdlib/random/base/randu' );
 var ceil = require( '@stdlib/math/base/special/ceil' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var tryRequire = require( '@stdlib/utils/try-require' );
 var pkg = require( './../package.json' ).name;
-var pdf = require( './../lib' );
 
 
-// MAIN //
+// VARIABLES //
 
-bench( pkg, function benchmark( b ) {
-	var n;
-	var x;
-	var y;
-	var i;
+var pdf = tryRequire( resolve( __dirname, './../lib/native.js' ) );
+var opts = {
+	'skip': ( pdf instanceof Error )
+};
 
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		x = randu() * 20.0;
-		n = ceil( randu()*20.0 );
-		y = pdf( x, n );
-		if ( isnan( y ) ) {
-			b.fail( 'should not return NaN' );
-		}
-	}
-	b.toc();
-	if ( isnan( y ) ) {
-		b.fail( 'should not return NaN' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
 
-bench( pkg+':factory', function benchmark( b ) {
-	var mypdf;
+// MAIN //
+
+bench( pkg, opts, function benchmark( b ) {
+	var len;
 	var n;
 	var x;
 	var y;
 	var i;
 
-	n = 20;
-	mypdf = pdf.factory( n );
+	len = 100;
+	x = new Float64Array( len );
+	n = new Float64Array( len );
+	for ( i = 0; i < len; i++ ) {
+		x[ i ] = ( randu() * 30.0 );
+		n[ i ] = ceil( randu() * 30.0 );
+	}
 
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {
-		x = randu() * 20.0;
-		y = mypdf( x );
+		y = pdf( x[ i % len ], n[ i % len ] );
 		if ( isnan( y ) ) {
 			b.fail( 'should not return NaN' );
 		}
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.native.js
new file mode 100644
index 000000000000..aa8e6be1f472
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.native.js
@@ -0,0 +1,89 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var Float64Array = require( '@stdlib/array/float64' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var randu = require( '@stdlib/random/base/randu' );
+var ceil = require( '@stdlib/math/base/special/ceil' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pkg = require( './../package.json' ).name;
+var pdf = require( './../lib' );
+
+
+// MAIN //
+
+bench( pkg, function benchmark( b ) {
+	var len;
+	var n;
+	var x;
+	var y;
+	var i;
+
+	len = 100;
+	x = new Float64Array( len );
+	n = new Float64Array( len );
+	for ( i = 0; i < len; i++ ) {
+		x[ i ] = ( randu() * 30.0 );
+		n[ i ] = ceil( randu() * 30.0 );
+	}
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		y = pdf( x[ i % len ], n[ i % len ] );
+		if ( isnan( y ) ) {
+			b.fail( 'should not return NaN' );
+		}
+	}
+	b.toc();
+	if ( isnan( y ) ) {
+		b.fail( 'should not return NaN' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
+
+bench( pkg+':factory', function benchmark( b ) {
+	var mypdf;
+	var n;
+	var x;
+	var y;
+	var i;
+
+	n = 20;
+	mypdf = pdf.factory( n );
+	x = uniform( 100, -2.0, 2.0 );
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		y = mypdf( x[ i % x.length] );
+		if ( isnan( y ) ) {
+			b.fail( 'should not return NaN' );
+		}
+	}
+	b.toc();
+	if ( isnan( y ) ) {
+		b.fail( 'should not return NaN' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/c/Makefile b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/c/Makefile
new file mode 100644
index 000000000000..a4bd7b38fd74
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/c/Makefile
@@ -0,0 +1,146 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2025 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+	QUIET := @
+else
+	QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+	OS := WINNT
+endif
+endif
+endif
+endif
+
+# Define the program used for compiling C source files:
+ifdef C_COMPILER
+	CC := $(C_COMPILER)
+else
+	CC := gcc
+endif
+
+# Define the command-line options when compiling C files:
+CFLAGS ?= \
+	-std=c99 \
+	-O3 \
+	-Wall \
+	-pedantic
+
+# Determine whether to generate position independent code ([1][1], [2][2]).
+#
+# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options
+# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option
+ifeq ($(OS), WINNT)
+	fPIC ?=
+else
+	fPIC ?= -fPIC
+endif
+
+# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`):
+INCLUDE ?=
+
+# List of source files:
+SOURCE_FILES ?=
+
+# List of libraries (e.g., `-lopenblas -lpthread`):
+LIBRARIES ?=
+
+# List of library paths (e.g., `-L /foo/bar -L /beep/boop`):
+LIBPATH ?=
+
+# List of C targets:
+c_targets := benchmark.out
+
+
+# RULES #
+
+#/
+# Compiles source files.
+#
+# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`)
+# @param {string} [CFLAGS] - C compiler options
+# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`)
+# @param {string} [SOURCE_FILES] - list of source files
+# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`)
+# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`)
+#
+# @example
+# make
+#
+# @example
+# make all
+#/
+all: $(c_targets)
+
+.PHONY: all
+
+#/
+# Compiles C source files.
+#
+# @private
+# @param {string} CC - C compiler (e.g., `gcc`)
+# @param {string} CFLAGS - C compiler options
+# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`)
+# @param {string} SOURCE_FILES - list of source files
+# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`)
+# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`)
+#/
+$(c_targets): %.out: %.c
+	$(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES)
+
+#/
+# Runs compiled benchmarks.
+#
+# @example
+# make run
+#/
+run: $(c_targets)
+	$(QUIET) ./$<
+
+.PHONY: run
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean:
+	$(QUIET) -rm -f *.o *.out
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/c/benchmark.c b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/c/benchmark.c
new file mode 100644
index 000000000000..a1cd477cfebc
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/c/benchmark.c
@@ -0,0 +1,141 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/stats/base/dists/signrank/pdf.h"
+#include "stdlib/math/base/special/ceil.h"
+#include <stdlib.h>
+#include <stdio.h>
+#include <math.h>
+#include <time.h>
+#include <sys/time.h>
+
+#define NAME "signrank-pdf"
+#define ITERATIONS 1000000
+#define REPEATS 3
+
+/**
+* Prints the TAP version.
+*/
+static void print_version( void ) {
+	printf( "TAP version 13\n" );
+}
+
+/**
+* Prints the TAP summary.
+*
+* @param total     total number of tests
+* @param passing   total number of passing tests
+*/
+static void print_summary( int total, int passing ) {
+	printf( "#\n" );
+	printf( "1..%d\n", total ); // TAP plan
+	printf( "# total %d\n", total );
+	printf( "# pass  %d\n", passing );
+	printf( "#\n" );
+	printf( "# ok\n" );
+}
+
+/**
+* Prints benchmarks results.
+*
+* @param elapsed   elapsed time in seconds
+*/
+static void print_results( double elapsed ) {
+	double rate = (double)ITERATIONS / elapsed;
+	printf( "  ---\n" );
+	printf( "  iterations: %d\n", ITERATIONS );
+	printf( "  elapsed: %0.9f\n", elapsed );
+	printf( "  rate: %0.9f\n", rate );
+	printf( "  ...\n" );
+}
+
+/**
+* Returns a clock time.
+*
+* @return clock time
+*/
+static double tic( void ) {
+	struct timeval now;
+	gettimeofday( &now, NULL );
+	return (double)now.tv_sec + (double)now.tv_usec/1.0e6;
+}
+
+/**
+* Generates a random number on the interval [min,max).
+*
+* @param min    minimum value (inclusive)
+* @param max    maximum value (exclusive)
+* @return       random number
+*/
+static double random_uniform( const double min, const double max ) {
+	double v = (double)rand() / ( (double)RAND_MAX + 1.0 );
+	return min + ( v*(max-min) );
+}
+
+/**
+* Runs a benchmark.
+*
+* @return elapsed time in seconds
+*/
+static double benchmark( void ) {
+	double elapsed;
+	double x[ 100 ];
+	double n[ 100 ];
+	double y;
+	double t;
+	int i;
+
+	for ( i = 0; i < 100; i++ ) {
+		x[ i ] = random_uniform( 0, 30.0 );
+		n[ i ] = stdlib_base_ceil(random_uniform( 1, 30.0 ));
+	}
+
+	t = tic();
+	for ( i = 0; i < ITERATIONS; i++ ) {
+		y = stdlib_base_dists_signrank_pdf( x[ i%100 ], n[ i%100 ] );
+		if ( y != y ) {
+			printf( "should not return NaN\n" );
+			break;
+		}
+	}
+	elapsed = tic() - t;
+	if ( y != y ) {
+		printf( "should not return NaN\n" );
+	}
+	return elapsed;
+}
+
+/**
+* Main execution sequence.
+*/
+int main( void ) {
+	double elapsed;
+	int i;
+
+	// Use the current time to seed the random number generator:
+	srand( time( NULL ) );
+
+	print_version();
+	for ( i = 0; i < REPEATS; i++ ) {
+		printf( "# c::%s\n", NAME );
+		elapsed = benchmark();
+		print_results( elapsed );
+		printf( "ok %d benchmark finished\n", i+1 );
+	}
+	print_summary( REPEATS, REPEATS );
+}
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/binding.gyp b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/binding.gyp
new file mode 100644
index 000000000000..68a1ca11d160
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/binding.gyp
@@ -0,0 +1,170 @@
+# @license Apache-2.0
+#
+# Copyright (c) 2025 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# A `.gyp` file for building a Node.js native add-on.
+#
+# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md
+# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md
+{
+  # List of files to include in this file:
+  'includes': [
+    './include.gypi',
+  ],
+
+  # Define variables to be used throughout the configuration for all targets:
+  'variables': {
+    # Target name should match the add-on export name:
+    'addon_target_name%': 'addon',
+
+    # Set variables based on the host OS:
+    'conditions': [
+      [
+        'OS=="win"',
+        {
+          # Define the object file suffix:
+          'obj': 'obj',
+        },
+        {
+          # Define the object file suffix:
+          'obj': 'o',
+        }
+      ], # end condition (OS=="win")
+    ], # end conditions
+  }, # end variables
+
+  # Define compile targets:
+  'targets': [
+
+    # Target to generate an add-on:
+    {
+      # The target name should match the add-on export name:
+      'target_name': '<(addon_target_name)',
+
+      # Define dependencies:
+      'dependencies': [],
+
+      # Define directories which contain relevant include headers:
+      'include_dirs': [
+        # Local include directory:
+        '<@(include_dirs)',
+      ],
+
+      # List of source files:
+      'sources': [
+        '<@(src_files)',
+      ],
+
+      # Settings which should be applied when a target's object files are used as linker input:
+      'link_settings': {
+        # Define libraries:
+        'libraries': [
+          '<@(libraries)',
+        ],
+
+        # Define library directories:
+        'library_dirs': [
+          '<@(library_dirs)',
+        ],
+      },
+
+      # C/C++ compiler flags:
+      'cflags': [
+        # Enable commonly used warning options:
+        '-Wall',
+
+        # Aggressive optimization:
+        '-O3',
+      ],
+
+      # C specific compiler flags:
+      'cflags_c': [
+        # Specify the C standard to which a program is expected to conform:
+        '-std=c99',
+      ],
+
+      # C++ specific compiler flags:
+      'cflags_cpp': [
+        # Specify the C++ standard to which a program is expected to conform:
+        '-std=c++11',
+      ],
+
+      # Linker flags:
+      'ldflags': [],
+
+      # Apply conditions based on the host OS:
+      'conditions': [
+        [
+          'OS=="mac"',
+          {
+            # Linker flags:
+            'ldflags': [
+              '-undefined dynamic_lookup',
+              '-Wl,-no-pie',
+              '-Wl,-search_paths_first',
+            ],
+          },
+        ], # end condition (OS=="mac")
+        [
+          'OS!="win"',
+          {
+            # C/C++ flags:
+            'cflags': [
+              # Generate platform-independent code:
+              '-fPIC',
+            ],
+          },
+        ], # end condition (OS!="win")
+      ], # end conditions
+    }, # end target <(addon_target_name)
+
+    # Target to copy a generated add-on to a standard location:
+    {
+      'target_name': 'copy_addon',
+
+      # Declare that the output of this target is not linked:
+      'type': 'none',
+
+      # Define dependencies:
+      'dependencies': [
+        # Require that the add-on be generated before building this target:
+        '<(addon_target_name)',
+      ],
+
+      # Define a list of actions:
+      'actions': [
+        {
+          'action_name': 'copy_addon',
+          'message': 'Copying addon...',
+
+          # Explicitly list the inputs in the command-line invocation below:
+          'inputs': [],
+
+          # Declare the expected outputs:
+          'outputs': [
+            '<(addon_output_dir)/<(addon_target_name).node',
+          ],
+
+          # Define the command-line invocation:
+          'action': [
+            'cp',
+            '<(PRODUCT_DIR)/<(addon_target_name).node',
+            '<(addon_output_dir)/<(addon_target_name).node',
+          ],
+        },
+      ], # end actions
+    }, # end target copy_addon
+  ], # end targets
+}
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/examples/c/Makefile b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/examples/c/Makefile
new file mode 100644
index 000000000000..25ced822f96a
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/examples/c/Makefile
@@ -0,0 +1,146 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2025 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+	QUIET := @
+else
+	QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+	OS := WINNT
+endif
+endif
+endif
+endif
+
+# Define the program used for compiling C source files:
+ifdef C_COMPILER
+	CC := $(C_COMPILER)
+else
+	CC := gcc
+endif
+
+# Define the command-line options when compiling C files:
+CFLAGS ?= \
+	-std=c99 \
+	-O3 \
+	-Wall \
+	-pedantic
+
+# Determine whether to generate position independent code ([1][1], [2][2]).
+#
+# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options
+# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option
+ifeq ($(OS), WINNT)
+	fPIC ?=
+else
+	fPIC ?= -fPIC
+endif
+
+# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`):
+INCLUDE ?=
+
+# List of source files:
+SOURCE_FILES ?=
+
+# List of libraries (e.g., `-lopenblas -lpthread`):
+LIBRARIES ?=
+
+# List of library paths (e.g., `-L /foo/bar -L /beep/boop`):
+LIBPATH ?=
+
+# List of C targets:
+c_targets := example.out
+
+
+# RULES #
+
+#/
+# Compiles source files.
+#
+# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`)
+# @param {string} [CFLAGS] - C compiler options
+# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`)
+# @param {string} [SOURCE_FILES] - list of source files
+# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`)
+# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`)
+#
+# @example
+# make
+#
+# @example
+# make all
+#/
+all: $(c_targets)
+
+.PHONY: all
+
+#/
+# Compiles C source files.
+#
+# @private
+# @param {string} CC - C compiler (e.g., `gcc`)
+# @param {string} CFLAGS - C compiler options
+# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`)
+# @param {string} SOURCE_FILES - list of source files
+# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`)
+# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`)
+#/
+$(c_targets): %.out: %.c
+	$(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES)
+
+#/
+# Runs compiled examples.
+#
+# @example
+# make run
+#/
+run: $(c_targets)
+	$(QUIET) ./$<
+
+.PHONY: run
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean:
+	$(QUIET) -rm -f *.o *.out
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/examples/c/example.c b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/examples/c/example.c
new file mode 100644
index 000000000000..1fafc3e27135
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/examples/c/example.c
@@ -0,0 +1,41 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/stats/base/dists/signrank/pdf.h"
+#include "stdlib/math/base/special/ceil.h"
+#include <stdlib.h>
+#include <stdio.h>
+
+static double random_uniform( const double min, const double max ) {
+	double v = (double)rand() / ( (double)RAND_MAX + 1.0 );
+	return min + ( v*(max-min) );
+}
+
+int main( void ) {
+	double n;
+	double x;
+	double y;
+	int i;
+
+	for ( i = 0; i < 25; i++ ) {
+		x = random_uniform( 0, 30.0 );
+		n = stdlib_base_ceil(random_uniform( 1, 30.0 ));
+		y = stdlib_base_dists_signrank_pdf( x, n );
+		printf( "x: %lf, n: %lf, F(x;n): %lf\n", x, n, y );
+	}
+}
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/include.gypi b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/include.gypi
new file mode 100644
index 000000000000..ecfaf82a3279
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/include.gypi
@@ -0,0 +1,53 @@
+# @license Apache-2.0
+#
+# Copyright (c) 2025 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# A GYP include file for building a Node.js native add-on.
+#
+# Main documentation:
+#
+# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md
+# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md
+{
+  # Define variables to be used throughout the configuration for all targets:
+  'variables': {
+    # Source directory:
+    'src_dir': './src',
+
+    # Include directories:
+    'include_dirs': [
+      '<!@(node -e "var arr = require(\'@stdlib/utils/library-manifest\')(\'./manifest.json\',{},{\'basedir\':process.cwd(),\'paths\':\'posix\'}).include; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }")',
+    ],
+
+    # Add-on destination directory:
+    'addon_output_dir': './src',
+
+    # Source files:
+    'src_files': [
+      '<(src_dir)/addon.c',
+      '<!@(node -e "var arr = require(\'@stdlib/utils/library-manifest\')(\'./manifest.json\',{},{\'basedir\':process.cwd(),\'paths\':\'posix\'}).src; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }")',
+    ],
+
+    # Library dependencies:
+    'libraries': [
+      '<!@(node -e "var arr = require(\'@stdlib/utils/library-manifest\')(\'./manifest.json\',{},{\'basedir\':process.cwd(),\'paths\':\'posix\'}).libraries; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }")',
+    ],
+
+    # Library directories:
+    'library_dirs': [
+      '<!@(node -e "var arr = require(\'@stdlib/utils/library-manifest\')(\'./manifest.json\',{},{\'basedir\':process.cwd(),\'paths\':\'posix\'}).libpath; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }")',
+    ],
+  }, # end variables
+}
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/include/stdlib/stats/base/dists/signrank/pdf.h b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/include/stdlib/stats/base/dists/signrank/pdf.h
new file mode 100644
index 000000000000..de9994bc88a7
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/include/stdlib/stats/base/dists/signrank/pdf.h
@@ -0,0 +1,38 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#ifndef STDLIB_STATS_BASE_DISTS_SIGNRANK_PDF_H
+#define STDLIB_STATS_BASE_DISTS_SIGNRANK_PDF_H
+
+/*
+* If C++, prevent name mangling so that the compiler emits a binary file having undecorated names, thus mirroring the behavior of a C compiler.
+*/
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+* Evaluates the cumulative distribution function (PDF) of the Wilcoxon signed rank test statistic with `n` observations.
+*/
+double stdlib_base_dists_signrank_pdf( double x, const double n );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // !STDLIB_STATS_BASE_DISTS_SIGNRANK_PDF_H
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/lib/native.js b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/lib/native.js
new file mode 100644
index 000000000000..8dfa20d463cf
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/lib/native.js
@@ -0,0 +1,70 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var addon = require( './../src/addon.node' );
+
+
+// MAIN //
+
+/**
+* Evaluates the probability density function (PDF) of the Wilcoxon signed rank test statistic with `n` observations.
+*
+* @param {number} x - input value
+* @param {PositiveInteger} n - number of observations
+* @returns {Probability} evaluated PDF
+*
+* @example
+* var y = pdf( 7.0, 9 );
+* // returns ~0.01
+*
+* @example
+* var y = pdf( 7.0, 6 );
+* // returns ~0.063
+*
+* @example
+* var y = pdf( -1.0, 40 );
+* // returns 0.0
+*
+* @example
+* var y = pdf( NaN, 10 );
+* // returns NaN
+*
+* @example
+* var y = pdf( 0.0, NaN );
+* // returns NaN
+*
+* @example
+* var y = pdf( 2.0, -1 );
+* // returns NaN
+*
+* @example
+* var y = pdf( 2.0, 1.8 );
+* // returns NaN
+*/
+function pdf( x, n ) {
+	return addon( x, n );
+}
+
+
+// EXPORTS //
+
+module.exports = pdf;
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/manifest.json b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/manifest.json
new file mode 100644
index 000000000000..5973beba64b8
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/manifest.json
@@ -0,0 +1,82 @@
+{
+  "options": {
+    "task": "build",
+    "wasm": false
+  },
+  "fields": [
+    {
+      "field": "src",
+      "resolve": true,
+      "relative": true
+    },
+    {
+      "field": "include",
+      "resolve": true,
+      "relative": true
+    },
+    {
+      "field": "libraries",
+      "resolve": false,
+      "relative": false
+    },
+    {
+      "field": "libpath",
+      "resolve": true,
+      "relative": false
+    }
+  ],
+  "confs": [
+    {
+      "task": "build",
+      "wasm": false,
+      "src": ["./src/main.c"],
+      "include": ["./include"],
+      "libraries": [],
+      "libpath": [],
+      "dependencies": [
+        "@stdlib/math/base/assert/is-positive-integer",
+        "@stdlib/math/base/assert/is-finite",
+        "@stdlib/math/base/assert/is-nan",
+        "@stdlib/math/base/special/exp",
+        "@stdlib/constants/float64/ln-two",
+        "@stdlib/math/base/napi/binary",
+        "@stdlib/math/base/special/ln",
+        "@stdlib/math/base/assert/is-integer"
+      ]
+    },
+    {
+      "task": "benchmark",
+      "wasm": false,
+      "src": ["./src/main.c"],
+      "include": ["./include"],
+      "libraries": [],
+      "libpath": [],
+      "dependencies": [
+        "@stdlib/math/base/assert/is-positive-integer",
+        "@stdlib/math/base/assert/is-finite",
+        "@stdlib/math/base/assert/is-nan",
+        "@stdlib/math/base/special/exp",
+        "@stdlib/constants/float64/ln-two",
+        "@stdlib/math/base/special/ln",
+        "@stdlib/math/base/assert/is-integer"
+      ]
+    },
+    {
+      "task": "examples",
+      "wasm": false,
+      "src": ["./src/main.c"],
+      "include": ["./include"],
+      "libraries": [],
+      "libpath": [],
+      "dependencies": [
+        "@stdlib/math/base/assert/is-positive-integer",
+        "@stdlib/math/base/assert/is-finite",
+        "@stdlib/math/base/assert/is-nan",
+        "@stdlib/math/base/special/exp",
+        "@stdlib/constants/float64/ln-two",
+        "@stdlib/math/base/special/ln",
+        "@stdlib/math/base/assert/is-integer"
+      ]
+    }
+  ]
+}
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/package.json b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/package.json
index 74a9a46b7b8a..afdd17d85fde 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/package.json
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/package.json
@@ -14,11 +14,14 @@
     }
   ],
   "main": "./lib",
+  "gypfile": true,
   "directories": {
     "benchmark": "./benchmark",
     "doc": "./docs",
     "example": "./examples",
+    "include": "./include",
     "lib": "./lib",
+    "src": "./src",
     "test": "./test"
   },
   "types": "./docs/types",
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/Makefile b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/Makefile
new file mode 100644
index 000000000000..7733b6180cb4
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/Makefile
@@ -0,0 +1,70 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2025 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+	QUIET := @
+else
+	QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+	OS := WINNT
+endif
+endif
+endif
+endif
+
+
+# RULES #
+
+#/
+# Removes generated files for building an add-on.
+#
+# @example
+# make clean-addon
+#/
+clean-addon:
+	$(QUIET) -rm -f *.o *.node
+
+.PHONY: clean-addon
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean: clean-addon
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/addon.c b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/addon.c
new file mode 100644
index 000000000000..69417db62c8e
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/addon.c
@@ -0,0 +1,23 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/stats/base/dists/signrank/pdf.h"
+#include "stdlib/math/base/napi/binary.h"
+
+// cppcheck-suppress shadowFunction
+STDLIB_MATH_BASE_NAPI_MODULE_DD_D( stdlib_base_dists_signrank_pdf )
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/main.c b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/main.c
new file mode 100644
index 000000000000..057f94e0f78e
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/main.c
@@ -0,0 +1,104 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/stats/base/dists/signrank/pdf.h"
+#include "stdlib/math/base/assert/is_positive_integer.h"
+#include "stdlib/math/base/assert/is_integer.h"
+#include "stdlib/math/base/assert/is_finite.h"
+#include "stdlib/math/base/assert/is_nan.h"
+#include "stdlib/math/base/special/exp.h"
+#include "stdlib/constants/float64/ln_two.h"
+#include "stdlib/math/base/special/ln.h"
+
+/**
+* Calculates the weight for the `(x,n)` pair and memoizes the result.
+*
+* @private
+* @param {number} x - input value
+* @param {NonNegativeInteger} n - number of observations
+* @returns {number} weight
+*/
+static double weights( double x, const double n ) {
+	double mlim;
+
+	if ( n == 0 ) {
+		return ( x == 0 ) ? 1 : 0;
+	}
+	mlim = n * ( n + 1 ) / 2;
+	if ( x < 0 || x > mlim ) {
+		return 0;
+	}
+	if ( x > mlim / 2 ) {
+		x = mlim - x;
+	}
+	return weights( x - n, n - 1 ) + weights( x, n - 1 );
+}
+
+/**
+* Evaluates the probability density function (PDF) of the Wilcoxon signed rank test statistic with `n` observations.
+*
+* @param {number} x - input value
+* @param {PositiveInteger} n - number of observations
+* @returns {Probability} evaluated PDF
+*
+* @example
+* var y = pdf( 7.0, 9 );
+* // returns ~0.01
+*
+* @example
+* var y = pdf( 7.0, 6 );
+* // returns ~0.063
+*
+* @example
+* var y = pdf( -1.0, 40 );
+* // returns 0.0
+*
+* @example
+* var y = pdf( NaN, 10 );
+* // returns NaN
+*
+* @example
+* var y = pdf( 0.0, NaN );
+* // returns NaN
+*
+* @example
+* var y = pdf( 2.0, -1 );
+* // returns NaN
+*
+* @example
+* var y = pdf( 2.0, 1.8 );
+* // returns NaN
+*/
+double stdlib_base_dists_signrank_pdf( const double x, const double n ) {
+	double mlim;
+	if (
+		stdlib_base_is_nan( x ) ||
+		!stdlib_base_is_positive_integer( n ) ||
+		!stdlib_base_is_finite( n )
+	) {
+		return 0.0/0.0;
+	}
+	if ( !stdlib_base_is_integer( x ) ) {
+		return 0.0;
+	}
+	mlim = ( n * ( n + 1 ) ) / 2;
+	if ( x < 0.0 || x > mlim ) {
+		return 0.0;
+	}
+	return stdlib_base_exp( stdlib_base_ln( weights( x, n ) ) - ( n * STDLIB_CONSTANT_FLOAT64_LN2 ) );
+}
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/test/test.native.js b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/test/test.native.js
new file mode 100644
index 000000000000..7af91d34c755
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/test/test.native.js
@@ -0,0 +1,123 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var tape = require( 'tape' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var abs = require( '@stdlib/math/base/special/abs' );
+var PINF = require( '@stdlib/constants/float64/pinf' );
+var NINF = require( '@stdlib/constants/float64/ninf' );
+var EPS = require( '@stdlib/constants/float64/eps' );
+var data = require( './fixtures/r/data.json' );
+
+
+// VARIABLES //
+
+var pdf = tryRequire( resolve( __dirname, './../lib/native.js' ) );
+var opts = {
+	'skip': ( pdf instanceof Error )
+};
+
+
+// TESTS //
+
+tape( 'main export is a function', opts, function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof pdf, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'if provided `NaN` for any parameter, the function returns `NaN`', opts, function test( t ) {
+	var y = pdf( NaN, 8 );
+	t.equal( isnan( y ), true, 'returns NaN' );
+	y = pdf( 0.0, NaN );
+	t.equal( isnan( y ), true, 'returns NaN' );
+	t.end();
+});
+
+tape( 'if provided `+infinity` for `x` and a valid `n`, the function returns `0`', opts, function test( t ) {
+	var y = pdf( PINF, 8 );
+	t.equal( y, 0.0, 'returns 0' );
+	t.end();
+});
+
+tape( 'if provided `-infinity` for `x` and a valid `n`, the function returns `0`', opts, function test( t ) {
+	var y = pdf( NINF, 8 );
+	t.equal( y, 0.0, 'returns 0' );
+	t.end();
+});
+
+tape( 'if not provided a positive integer for `n`, the function returns `NaN`', opts, function test( t ) {
+	var y;
+
+	y = pdf( 2.0, -1.0 );
+	t.equal( isnan( y ), true, 'returns NaN' );
+
+	y = pdf( 2.0, NINF );
+	t.equal( isnan( y ), true, 'returns NaN' );
+
+	y = pdf( 2.0, 6.9 );
+	t.equal( isnan( y ), true, 'returns NaN' );
+
+	y = pdf( 2.0, PINF );
+	t.equal( isnan( y ), true, 'returns NaN' );
+
+	t.end();
+});
+
+tape( 'the function returns `0` if provided a non-integer for `x`', opts, function test( t ) {
+	var y = pdf( 1.5, 8 );
+	t.equal( y, 0.0, 'returns expected value' );
+	t.end();
+
+	y = pdf( 2.5, 8 );
+	t.equal( y, 0.0, 'returns expected value' );
+
+	y = pdf( 0.1, 4 );
+	t.equal( y, 0.0, 'returns expected value' );
+});
+
+tape( 'the function evaluates the PDF for `x` given `n` observations', opts, function test( t ) {
+	var expected;
+	var delta;
+	var tol;
+	var i;
+	var x;
+	var y;
+	var n;
+
+	expected = data.expected;
+	x = data.x;
+	n = data.n;
+	for ( i = 0; i < x.length; i++ ) {
+		y = pdf( x[i], n[i] );
+		if ( y === expected[i] ) {
+			t.equal( y, expected[i], 'x: '+x[i]+', n: '+n[i]+', y: '+y+', expected: '+expected[i] );
+		} else {
+			delta = abs( y - expected[ i ] );
+			tol = 20.0 * EPS * abs( expected[ i ] );
+			t.ok( delta <= tol, 'within tolerance. x: '+x[ i ]+'. n: '+n[i]+'. y: '+y+'. E: '+expected[ i ]+'. Δ: '+delta+'. tol: '+tol+'.' );
+		}
+	}
+	t.end();
+});

From 04dd93c6fd2db70859165a1a889da1851470bc37 Mon Sep 17 00:00:00 2001
From: Philipp Burckhardt <pburckhardt@outlook.com>
Date: Thu, 10 Jul 2025 21:32:24 -0500
Subject: [PATCH 02/13] chore: minor clean-up

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: passed
  - task: lint_markdown
    status: passed
  - task: lint_package_json
    status: na
  - task: lint_repl_help
    status: na
  - task: lint_javascript_src
    status: na
  - task: lint_javascript_cli
    status: na
  - task: lint_javascript_examples
    status: na
  - task: lint_javascript_tests
    status: na
  - task: lint_javascript_benchmarks
    status: na
  - task: lint_python
    status: na
  - task: lint_r
    status: na
  - task: lint_c_src
    status: na
  - task: lint_c_examples
    status: na
  - task: lint_c_benchmarks
    status: passed
  - task: lint_c_tests_fixtures
    status: na
  - task: lint_shell
    status: na
  - task: lint_typescript_declarations
    status: na
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---
---
 .../@stdlib/stats/base/dists/signrank/pdf/README.md         | 4 ++--
 .../stats/base/dists/signrank/pdf/benchmark/c/benchmark.c   | 6 +++---
 .../pdf/include/stdlib/stats/base/dists/signrank/pdf.h      | 2 +-
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/README.md b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/README.md
index 7429c3549c15..eb182c6fbba6 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/README.md
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/README.md
@@ -152,7 +152,7 @@ for ( i = 0; i < 10; i++ ) {
 #include "stdlib/stats/base/dists/signrank/pdf.h"
 ```
 
-#### stdlib_base_dists_signrank_cdf( x, n )
+#### stdlib_base_dists_signrank_pdf( x, n )
 
 Evaluates the probability density function (PDF) of the Wilcoxon signed rank test statistic with `n` observations.
 
@@ -167,7 +167,7 @@ The function accepts the following arguments:
 -   **n**: `[in] double` number of observations.
 
 ```c
-double stdlib_base_dists_signrank_cdf( double x, const double n );
+double stdlib_base_dists_signrank_pdf( double x, const double n );
 ```
 
 </section>
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/c/benchmark.c b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/c/benchmark.c
index a1cd477cfebc..4aee3bbac756 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/c/benchmark.c
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/c/benchmark.c
@@ -1,7 +1,7 @@
 /**
 * @license Apache-2.0
 *
-* Copyright (c) 2024 The Stdlib Authors.
+* Copyright (c) 2025 The Stdlib Authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -101,8 +101,8 @@ static double benchmark( void ) {
 	int i;
 
 	for ( i = 0; i < 100; i++ ) {
-		x[ i ] = random_uniform( 0, 30.0 );
-		n[ i ] = stdlib_base_ceil(random_uniform( 1, 30.0 ));
+		x[ i ] = random_uniform( 0.0, 30.0 );
+		n[ i ] = stdlib_base_ceil(random_uniform( 1.0, 30.0 ));
 	}
 
 	t = tic();
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/include/stdlib/stats/base/dists/signrank/pdf.h b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/include/stdlib/stats/base/dists/signrank/pdf.h
index de9994bc88a7..7cb8d101d603 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/include/stdlib/stats/base/dists/signrank/pdf.h
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/include/stdlib/stats/base/dists/signrank/pdf.h
@@ -27,7 +27,7 @@ extern "C" {
 #endif
 
 /**
-* Evaluates the cumulative distribution function (PDF) of the Wilcoxon signed rank test statistic with `n` observations.
+* Evaluates the probability density function (PDF) of the Wilcoxon signed rank test statistic with `n` observations.
 */
 double stdlib_base_dists_signrank_pdf( double x, const double n );
 

From d5d2acb4f066d47a6ec5fbc3012a0d2c129321b5 Mon Sep 17 00:00:00 2001
From: Philipp Burckhardt <pburckhardt@outlook.com>
Date: Thu, 10 Jul 2025 21:59:36 -0500
Subject: [PATCH 03/13] refactor: type n as an int32

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: passed
  - task: lint_markdown
    status: passed
  - task: lint_package_json
    status: na
  - task: lint_repl_help
    status: na
  - task: lint_javascript_src
    status: na
  - task: lint_javascript_cli
    status: na
  - task: lint_javascript_examples
    status: na
  - task: lint_javascript_tests
    status: passed
  - task: lint_javascript_benchmarks
    status: na
  - task: lint_python
    status: na
  - task: lint_r
    status: na
  - task: lint_c_src
    status: passed
  - task: lint_c_examples
    status: passed
  - task: lint_c_benchmarks
    status: passed
  - task: lint_c_tests_fixtures
    status: na
  - task: lint_shell
    status: na
  - task: lint_typescript_declarations
    status: na
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---
---
 .../stats/base/dists/signrank/pdf/README.md   | 11 +++++-----
 .../signrank/pdf/benchmark/c/benchmark.c      |  5 +++--
 .../dists/signrank/pdf/examples/c/example.c   |  7 ++++---
 .../stdlib/stats/base/dists/signrank/pdf.h    |  4 +++-
 .../stats/base/dists/signrank/pdf/src/addon.c |  2 +-
 .../stats/base/dists/signrank/pdf/src/main.c  | 21 +++++++------------
 .../dists/signrank/pdf/test/test.native.js    |  5 +----
 7 files changed, 26 insertions(+), 29 deletions(-)

diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/README.md b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/README.md
index eb182c6fbba6..4d01a633ceb8 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/README.md
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/README.md
@@ -164,10 +164,10 @@ double out = stdlib_base_dists_signrank_pdf( 7.0, 9 );
 The function accepts the following arguments:
 
 -   **x**: `[in] double` input value.
--   **n**: `[in] double` number of observations.
+-   **n**: `[in] int32_t` number of observations.
 
 ```c
-double stdlib_base_dists_signrank_pdf( double x, const double n );
+double stdlib_base_dists_signrank_pdf( const double x, const int32_t n );
 ```
 
 </section>
@@ -193,6 +193,7 @@ double stdlib_base_dists_signrank_pdf( double x, const double n );
 #include "stdlib/math/base/special/ceil.h"
 #include <stdlib.h>
 #include <stdio.h>
+#include <stdint.h>
 
 static double random_uniform( const double min, const double max ) {
     double v = (double)rand() / ( (double)RAND_MAX + 1.0 );
@@ -200,16 +201,16 @@ static double random_uniform( const double min, const double max ) {
 }
 
 int main( void ) {
-    double n;
+    int32_t n;
     double x;
     double y;
     int i;
 
     for ( i = 0; i < 25; i++ ) {
         x = random_uniform( 0, 30.0 );
-        n = stdlib_base_ceil(random_uniform( 1, 30.0 ));
+        n = (int32_t)stdlib_base_ceil(random_uniform( 1.0, 30.0 ));
         y = stdlib_base_dists_signrank_pdf( x, n );
-        printf( "x: %lf, n: %lf, F(x;n): %lf\n", x, n, y );
+        printf( "x: %lf, n: %d, f(x;n): %lf\n", x, n, y );
     }
 }
 ```
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/c/benchmark.c b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/c/benchmark.c
index 4aee3bbac756..3395512fc275 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/c/benchmark.c
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/c/benchmark.c
@@ -23,6 +23,7 @@
 #include <math.h>
 #include <time.h>
 #include <sys/time.h>
+#include <stdint.h>
 
 #define NAME "signrank-pdf"
 #define ITERATIONS 1000000
@@ -95,14 +96,14 @@ static double random_uniform( const double min, const double max ) {
 static double benchmark( void ) {
 	double elapsed;
 	double x[ 100 ];
-	double n[ 100 ];
+	int32_t n[ 100 ];
 	double y;
 	double t;
 	int i;
 
 	for ( i = 0; i < 100; i++ ) {
 		x[ i ] = random_uniform( 0.0, 30.0 );
-		n[ i ] = stdlib_base_ceil(random_uniform( 1.0, 30.0 ));
+		n[ i ] = (int32_t)stdlib_base_ceil(random_uniform( 1.0, 30.0 ));
 	}
 
 	t = tic();
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/examples/c/example.c b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/examples/c/example.c
index 1fafc3e27135..cf53bd0e34fc 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/examples/c/example.c
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/examples/c/example.c
@@ -20,6 +20,7 @@
 #include "stdlib/math/base/special/ceil.h"
 #include <stdlib.h>
 #include <stdio.h>
+#include <stdint.h>
 
 static double random_uniform( const double min, const double max ) {
 	double v = (double)rand() / ( (double)RAND_MAX + 1.0 );
@@ -27,15 +28,15 @@ static double random_uniform( const double min, const double max ) {
 }
 
 int main( void ) {
-	double n;
+	int32_t n;
 	double x;
 	double y;
 	int i;
 
 	for ( i = 0; i < 25; i++ ) {
 		x = random_uniform( 0, 30.0 );
-		n = stdlib_base_ceil(random_uniform( 1, 30.0 ));
+		n = (int32_t)stdlib_base_ceil(random_uniform( 1.0, 30.0 ));
 		y = stdlib_base_dists_signrank_pdf( x, n );
-		printf( "x: %lf, n: %lf, F(x;n): %lf\n", x, n, y );
+		printf( "x: %lf, n: %d, f(x;n): %lf\n", x, n, y );
 	}
 }
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/include/stdlib/stats/base/dists/signrank/pdf.h b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/include/stdlib/stats/base/dists/signrank/pdf.h
index 7cb8d101d603..ae2fce0f678e 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/include/stdlib/stats/base/dists/signrank/pdf.h
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/include/stdlib/stats/base/dists/signrank/pdf.h
@@ -19,6 +19,8 @@
 #ifndef STDLIB_STATS_BASE_DISTS_SIGNRANK_PDF_H
 #define STDLIB_STATS_BASE_DISTS_SIGNRANK_PDF_H
 
+#include <stdint.h>
+
 /*
 * If C++, prevent name mangling so that the compiler emits a binary file having undecorated names, thus mirroring the behavior of a C compiler.
 */
@@ -29,7 +31,7 @@ extern "C" {
 /**
 * Evaluates the probability density function (PDF) of the Wilcoxon signed rank test statistic with `n` observations.
 */
-double stdlib_base_dists_signrank_pdf( double x, const double n );
+double stdlib_base_dists_signrank_pdf( const double x, const int32_t n );
 
 #ifdef __cplusplus
 }
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/addon.c b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/addon.c
index 69417db62c8e..665ec01e1a78 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/addon.c
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/addon.c
@@ -20,4 +20,4 @@
 #include "stdlib/math/base/napi/binary.h"
 
 // cppcheck-suppress shadowFunction
-STDLIB_MATH_BASE_NAPI_MODULE_DD_D( stdlib_base_dists_signrank_pdf )
+STDLIB_MATH_BASE_NAPI_MODULE_DI_D( stdlib_base_dists_signrank_pdf )
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/main.c b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/main.c
index 057f94e0f78e..c065aa97e778 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/main.c
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/main.c
@@ -17,13 +17,12 @@
 */
 
 #include "stdlib/stats/base/dists/signrank/pdf.h"
-#include "stdlib/math/base/assert/is_positive_integer.h"
 #include "stdlib/math/base/assert/is_integer.h"
-#include "stdlib/math/base/assert/is_finite.h"
 #include "stdlib/math/base/assert/is_nan.h"
 #include "stdlib/math/base/special/exp.h"
 #include "stdlib/constants/float64/ln_two.h"
 #include "stdlib/math/base/special/ln.h"
+#include <stdint.h>
 
 /**
 * Calculates the weight for the `(x,n)` pair and memoizes the result.
@@ -33,20 +32,20 @@
 * @param {NonNegativeInteger} n - number of observations
 * @returns {number} weight
 */
-static double weights( double x, const double n ) {
+static double weights( double x, const int32_t n ) {
 	double mlim;
 
 	if ( n == 0 ) {
 		return ( x == 0 ) ? 1 : 0;
 	}
-	mlim = n * ( n + 1 ) / 2;
+	mlim = ( (double)n * ( (double)n + 1.0 ) ) / 2.0;
 	if ( x < 0 || x > mlim ) {
 		return 0;
 	}
 	if ( x > mlim / 2 ) {
 		x = mlim - x;
 	}
-	return weights( x - n, n - 1 ) + weights( x, n - 1 );
+	return weights( x - (double)n, n - 1 ) + weights( x, n - 1 );
 }
 
 /**
@@ -84,21 +83,17 @@ static double weights( double x, const double n ) {
 * var y = pdf( 2.0, 1.8 );
 * // returns NaN
 */
-double stdlib_base_dists_signrank_pdf( const double x, const double n ) {
+double stdlib_base_dists_signrank_pdf( const double x, const int32_t n ) {
 	double mlim;
-	if (
-		stdlib_base_is_nan( x ) ||
-		!stdlib_base_is_positive_integer( n ) ||
-		!stdlib_base_is_finite( n )
-	) {
+	if ( stdlib_base_is_nan( x ) || n <= 0 ) {
 		return 0.0/0.0;
 	}
 	if ( !stdlib_base_is_integer( x ) ) {
 		return 0.0;
 	}
-	mlim = ( n * ( n + 1 ) ) / 2;
+	mlim = ( (double)n * ( (double)n + 1.0 ) ) / 2.0;
 	if ( x < 0.0 || x > mlim ) {
 		return 0.0;
 	}
-	return stdlib_base_exp( stdlib_base_ln( weights( x, n ) ) - ( n * STDLIB_CONSTANT_FLOAT64_LN2 ) );
+	return stdlib_base_exp( stdlib_base_ln( weights( x, n ) ) - ( (double)n * STDLIB_CONSTANT_FLOAT64_LN2 ) );
 }
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/test/test.native.js b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/test/test.native.js
index 7af91d34c755..498308478953 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/test/test.native.js
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/test/test.native.js
@@ -76,9 +76,6 @@ tape( 'if not provided a positive integer for `n`, the function returns `NaN`',
 	y = pdf( 2.0, NINF );
 	t.equal( isnan( y ), true, 'returns NaN' );
 
-	y = pdf( 2.0, 6.9 );
-	t.equal( isnan( y ), true, 'returns NaN' );
-
 	y = pdf( 2.0, PINF );
 	t.equal( isnan( y ), true, 'returns NaN' );
 
@@ -115,7 +112,7 @@ tape( 'the function evaluates the PDF for `x` given `n` observations', opts, fun
 			t.equal( y, expected[i], 'x: '+x[i]+', n: '+n[i]+', y: '+y+', expected: '+expected[i] );
 		} else {
 			delta = abs( y - expected[ i ] );
-			tol = 20.0 * EPS * abs( expected[ i ] );
+			tol = 80.0 * EPS * abs( expected[ i ] );
 			t.ok( delta <= tol, 'within tolerance. x: '+x[ i ]+'. n: '+n[i]+'. y: '+y+'. E: '+expected[ i ]+'. Δ: '+delta+'. tol: '+tol+'.' );
 		}
 	}

From 3030fda76899b74e74220df6414780b94c4195c8 Mon Sep 17 00:00:00 2001
From: Lokesh Ranjan <lokesh.ranjan.phe23@itbhu.ac.in>
Date: Fri, 11 Jul 2025 08:48:39 +0530
Subject: [PATCH 04/13] Apply suggestion from @Planeshifter

Co-authored-by: Philipp Burckhardt <pburckhardt@outlook.com>
Signed-off-by: Lokesh Ranjan <lokesh.ranjan.phe23@itbhu.ac.in>
---
 .../@stdlib/stats/base/dists/signrank/pdf/src/addon.c            | 1 -
 1 file changed, 1 deletion(-)

diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/addon.c b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/addon.c
index 665ec01e1a78..c3abe410c412 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/addon.c
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/addon.c
@@ -19,5 +19,4 @@
 #include "stdlib/stats/base/dists/signrank/pdf.h"
 #include "stdlib/math/base/napi/binary.h"
 
-// cppcheck-suppress shadowFunction
 STDLIB_MATH_BASE_NAPI_MODULE_DI_D( stdlib_base_dists_signrank_pdf )

From 86ef6b78e6075f84a9f81234dc8bfc81ce7c3abf Mon Sep 17 00:00:00 2001
From: Lokesh Ranjan <lokesh.ranjan.phe23@itbhu.ac.in>
Date: Fri, 11 Jul 2025 08:59:49 +0530
Subject: [PATCH 05/13] Apply suggestion from @Planeshifter

Co-authored-by: Philipp Burckhardt <pburckhardt@outlook.com>
Signed-off-by: Lokesh Ranjan <lokesh.ranjan.phe23@itbhu.ac.in>
---
 .../stats/base/dists/signrank/pdf/src/main.c  | 26 +------------------
 1 file changed, 1 insertion(+), 25 deletions(-)

diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/main.c b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/main.c
index c065aa97e778..71e62de63bbf 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/main.c
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/main.c
@@ -56,32 +56,8 @@ static double weights( double x, const int32_t n ) {
 * @returns {Probability} evaluated PDF
 *
 * @example
-* var y = pdf( 7.0, 9 );
+* double y = stdlib_base_dists_signrank_pdf( 7.0, 9 );
 * // returns ~0.01
-*
-* @example
-* var y = pdf( 7.0, 6 );
-* // returns ~0.063
-*
-* @example
-* var y = pdf( -1.0, 40 );
-* // returns 0.0
-*
-* @example
-* var y = pdf( NaN, 10 );
-* // returns NaN
-*
-* @example
-* var y = pdf( 0.0, NaN );
-* // returns NaN
-*
-* @example
-* var y = pdf( 2.0, -1 );
-* // returns NaN
-*
-* @example
-* var y = pdf( 2.0, 1.8 );
-* // returns NaN
 */
 double stdlib_base_dists_signrank_pdf( const double x, const int32_t n ) {
 	double mlim;

From de34d5c1045f3aff8f2f99e735ba2da2d53a0ca2 Mon Sep 17 00:00:00 2001
From: Lokesh Ranjan <lokesh.ranjan.phe23@itbhu.ac.in>
Date: Fri, 11 Jul 2025 09:00:40 +0530
Subject: [PATCH 06/13] Update
 lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/manifest.json

Co-authored-by: Philipp Burckhardt <pburckhardt@outlook.com>
Signed-off-by: Lokesh Ranjan <lokesh.ranjan.phe23@itbhu.ac.in>
---
 .../@stdlib/stats/base/dists/signrank/pdf/manifest.json        | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/manifest.json b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/manifest.json
index 5973beba64b8..a49cd32509b7 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/manifest.json
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/manifest.json
@@ -69,8 +69,7 @@
       "libraries": [],
       "libpath": [],
       "dependencies": [
-        "@stdlib/math/base/assert/is-positive-integer",
-        "@stdlib/math/base/assert/is-finite",
+        "@stdlib/stdlib/math/base/special/ceil",
         "@stdlib/math/base/assert/is-nan",
         "@stdlib/math/base/special/exp",
         "@stdlib/constants/float64/ln-two",

From b7cd111887508177c9037ff4719573d011e766d5 Mon Sep 17 00:00:00 2001
From: Lokesh Ranjan <lokesh.ranjan.phe23@itbhu.ac.in>
Date: Fri, 11 Jul 2025 09:00:57 +0530
Subject: [PATCH 07/13] Update
 lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/manifest.json

Co-authored-by: Philipp Burckhardt <pburckhardt@outlook.com>
Signed-off-by: Lokesh Ranjan <lokesh.ranjan.phe23@itbhu.ac.in>
---
 .../@stdlib/stats/base/dists/signrank/pdf/manifest.json        | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/manifest.json b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/manifest.json
index a49cd32509b7..614e278697f3 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/manifest.json
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/manifest.json
@@ -52,8 +52,7 @@
       "libraries": [],
       "libpath": [],
       "dependencies": [
-        "@stdlib/math/base/assert/is-positive-integer",
-        "@stdlib/math/base/assert/is-finite",
+        "@stdlib/stdlib/math/base/special/ceil",
         "@stdlib/math/base/assert/is-nan",
         "@stdlib/math/base/special/exp",
         "@stdlib/constants/float64/ln-two",

From 12b9451cca1c8fff08883556cb5174034586e07e Mon Sep 17 00:00:00 2001
From: Lokesh Ranjan <lokesh.ranjan.phe23@itbhu.ac.in>
Date: Fri, 11 Jul 2025 09:01:20 +0530
Subject: [PATCH 08/13] Update
 lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/manifest.json

Co-authored-by: Philipp Burckhardt <pburckhardt@outlook.com>
Signed-off-by: Lokesh Ranjan <lokesh.ranjan.phe23@itbhu.ac.in>
---
 .../@stdlib/stats/base/dists/signrank/pdf/manifest.json         | 2 --
 1 file changed, 2 deletions(-)

diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/manifest.json b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/manifest.json
index 614e278697f3..62a839d48e59 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/manifest.json
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/manifest.json
@@ -34,8 +34,6 @@
       "libraries": [],
       "libpath": [],
       "dependencies": [
-        "@stdlib/math/base/assert/is-positive-integer",
-        "@stdlib/math/base/assert/is-finite",
         "@stdlib/math/base/assert/is-nan",
         "@stdlib/math/base/special/exp",
         "@stdlib/constants/float64/ln-two",

From cbca601449846f1d7afc61e5a6156a2c2ca0ce1a Mon Sep 17 00:00:00 2001
From: Lokesh Ranjan <lokesh.ranjan.phe23@itbhu.ac.in>
Date: Fri, 11 Jul 2025 09:01:55 +0530
Subject: [PATCH 09/13] Update
 lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/lib/native.js

Co-authored-by: Philipp Burckhardt <pburckhardt@outlook.com>
Signed-off-by: Lokesh Ranjan <lokesh.ranjan.phe23@itbhu.ac.in>
---
 .../@stdlib/stats/base/dists/signrank/pdf/lib/native.js       | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/lib/native.js b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/lib/native.js
index 8dfa20d463cf..fa8497fcb249 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/lib/native.js
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/lib/native.js
@@ -55,10 +55,6 @@ var addon = require( './../src/addon.node' );
 * @example
 * var y = pdf( 2.0, -1 );
 * // returns NaN
-*
-* @example
-* var y = pdf( 2.0, 1.8 );
-* // returns NaN
 */
 function pdf( x, n ) {
 	return addon( x, n );

From ceb625c95200e3bb71e5baee522d591be20e79e2 Mon Sep 17 00:00:00 2001
From: Lokeshranjan8 <lokesh.ranjan.phe23@itbhu.ac.in>
Date: Fri, 11 Jul 2025 10:15:52 +0530
Subject: [PATCH 10/13] fix: implement C Doxygen style comments in main.c

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: passed
  - task: lint_markdown
    status: na
  - task: lint_package_json
    status: na
  - task: lint_repl_help
    status: na
  - task: lint_javascript_src
    status: na
  - task: lint_javascript_cli
    status: na
  - task: lint_javascript_examples
    status: na
  - task: lint_javascript_tests
    status: na
  - task: lint_javascript_benchmarks
    status: na
  - task: lint_python
    status: na
  - task: lint_r
    status: na
  - task: lint_c_src
    status: passed
  - task: lint_c_examples
    status: na
  - task: lint_c_benchmarks
    status: na
  - task: lint_c_tests_fixtures
    status: na
  - task: lint_shell
    status: na
  - task: lint_typescript_declarations
    status: na
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---
---
 .../dists/signrank/pdf/benchmark/benchmark.js | 42 +++++++++++++------
 .../pdf/benchmark/benchmark.native.js         | 42 ++++++-------------
 .../stats/base/dists/signrank/pdf/src/main.c  | 15 ++++---
 3 files changed, 49 insertions(+), 50 deletions(-)

diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.js b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.js
index 3aa3b0ddbb62..aa8e6be1f472 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.js
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.js
@@ -1,7 +1,7 @@
 /**
 * @license Apache-2.0
 *
-* Copyright (c) 2020 The Stdlib Authors.
+* Copyright (c) 2025 The Stdlib Authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -20,27 +20,19 @@
 
 // MODULES //
 
-var resolve = require( 'path' ).resolve;
 var bench = require( '@stdlib/bench' );
 var Float64Array = require( '@stdlib/array/float64' );
+var uniform = require( '@stdlib/random/array/uniform' );
 var randu = require( '@stdlib/random/base/randu' );
 var ceil = require( '@stdlib/math/base/special/ceil' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
-var tryRequire = require( '@stdlib/utils/try-require' );
 var pkg = require( './../package.json' ).name;
-
-
-// VARIABLES //
-
-var pdf = tryRequire( resolve( __dirname, './../lib/native.js' ) );
-var opts = {
-	'skip': ( pdf instanceof Error )
-};
+var pdf = require( './../lib' );
 
 
 // MAIN //
 
-bench( pkg, opts, function benchmark( b ) {
+bench( pkg, function benchmark( b ) {
 	var len;
 	var n;
 	var x;
@@ -69,3 +61,29 @@ bench( pkg, opts, function benchmark( b ) {
 	b.pass( 'benchmark finished' );
 	b.end();
 });
+
+bench( pkg+':factory', function benchmark( b ) {
+	var mypdf;
+	var n;
+	var x;
+	var y;
+	var i;
+
+	n = 20;
+	mypdf = pdf.factory( n );
+	x = uniform( 100, -2.0, 2.0 );
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		y = mypdf( x[ i % x.length] );
+		if ( isnan( y ) ) {
+			b.fail( 'should not return NaN' );
+		}
+	}
+	b.toc();
+	if ( isnan( y ) ) {
+		b.fail( 'should not return NaN' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.native.js
index aa8e6be1f472..3aa3b0ddbb62 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.native.js
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.native.js
@@ -1,7 +1,7 @@
 /**
 * @license Apache-2.0
 *
-* Copyright (c) 2025 The Stdlib Authors.
+* Copyright (c) 2020 The Stdlib Authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -20,19 +20,27 @@
 
 // MODULES //
 
+var resolve = require( 'path' ).resolve;
 var bench = require( '@stdlib/bench' );
 var Float64Array = require( '@stdlib/array/float64' );
-var uniform = require( '@stdlib/random/array/uniform' );
 var randu = require( '@stdlib/random/base/randu' );
 var ceil = require( '@stdlib/math/base/special/ceil' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var tryRequire = require( '@stdlib/utils/try-require' );
 var pkg = require( './../package.json' ).name;
-var pdf = require( './../lib' );
+
+
+// VARIABLES //
+
+var pdf = tryRequire( resolve( __dirname, './../lib/native.js' ) );
+var opts = {
+	'skip': ( pdf instanceof Error )
+};
 
 
 // MAIN //
 
-bench( pkg, function benchmark( b ) {
+bench( pkg, opts, function benchmark( b ) {
 	var len;
 	var n;
 	var x;
@@ -61,29 +69,3 @@ bench( pkg, function benchmark( b ) {
 	b.pass( 'benchmark finished' );
 	b.end();
 });
-
-bench( pkg+':factory', function benchmark( b ) {
-	var mypdf;
-	var n;
-	var x;
-	var y;
-	var i;
-
-	n = 20;
-	mypdf = pdf.factory( n );
-	x = uniform( 100, -2.0, 2.0 );
-
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		y = mypdf( x[ i % x.length] );
-		if ( isnan( y ) ) {
-			b.fail( 'should not return NaN' );
-		}
-	}
-	b.toc();
-	if ( isnan( y ) ) {
-		b.fail( 'should not return NaN' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/main.c b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/main.c
index 71e62de63bbf..1403b93f83e0 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/main.c
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/main.c
@@ -25,12 +25,11 @@
 #include <stdint.h>
 
 /**
-* Calculates the weight for the `(x,n)` pair and memoizes the result.
+* Calculates the weight for the (x,n) pair and memoizes the result.
 *
-* @private
-* @param {number} x - input value
-* @param {NonNegativeInteger} n - number of observations
-* @returns {number} weight
+* @param x Input value
+* @param n Number of observations (must be a non-negative)
+* @return Weight value
 */
 static double weights( double x, const int32_t n ) {
 	double mlim;
@@ -51,9 +50,9 @@ static double weights( double x, const int32_t n ) {
 /**
 * Evaluates the probability density function (PDF) of the Wilcoxon signed rank test statistic with `n` observations.
 *
-* @param {number} x - input value
-* @param {PositiveInteger} n - number of observations
-* @returns {Probability} evaluated PDF
+* @param x Input value
+* @param n Number of observations (must be a non-negative)
+* @return Evaluated PDF
 *
 * @example
 * double y = stdlib_base_dists_signrank_pdf( 7.0, 9 );

From 0a27f62edefc0ecb410c81ff0a9707a51b9ec27d Mon Sep 17 00:00:00 2001
From: Lokesh Ranjan <lokesh.ranjan.phe23@itbhu.ac.in>
Date: Fri, 11 Jul 2025 10:29:46 +0530
Subject: [PATCH 11/13] Update benchmark.native.js

Signed-off-by: Lokesh Ranjan <lokesh.ranjan.phe23@itbhu.ac.in>
---
 .../stats/base/dists/signrank/pdf/benchmark/benchmark.native.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.native.js
index 3aa3b0ddbb62..f3d8d033c31d 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.native.js
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.native.js
@@ -1,7 +1,7 @@
 /**
 * @license Apache-2.0
 *
-* Copyright (c) 2020 The Stdlib Authors.
+* Copyright (c) 2025 The Stdlib Authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.

From 8a585570d199e1dd4eb1ee160e2b5ca29841e084 Mon Sep 17 00:00:00 2001
From: Philipp Burckhardt <pburckhardt@outlook.com>
Date: Fri, 11 Jul 2025 13:11:11 -0500
Subject: [PATCH 12/13] chore: minor clean-up

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: passed
  - task: lint_markdown
    status: passed
  - task: lint_package_json
    status: na
  - task: lint_repl_help
    status: na
  - task: lint_javascript_src
    status: na
  - task: lint_javascript_cli
    status: na
  - task: lint_javascript_examples
    status: na
  - task: lint_javascript_tests
    status: na
  - task: lint_javascript_benchmarks
    status: passed
  - task: lint_python
    status: na
  - task: lint_r
    status: na
  - task: lint_c_src
    status: passed
  - task: lint_c_examples
    status: passed
  - task: lint_c_benchmarks
    status: passed
  - task: lint_c_tests_fixtures
    status: na
  - task: lint_shell
    status: na
  - task: lint_typescript_declarations
    status: na
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---
---
 .../@stdlib/stats/base/dists/signrank/pdf/README.md |  2 +-
 .../base/dists/signrank/pdf/benchmark/benchmark.js  | 12 +++---------
 .../signrank/pdf/benchmark/benchmark.native.js      | 13 ++++---------
 .../base/dists/signrank/pdf/benchmark/c/benchmark.c |  2 +-
 .../base/dists/signrank/pdf/examples/c/example.c    |  2 +-
 .../stats/base/dists/signrank/pdf/src/main.c        | 12 ++++++------
 6 files changed, 16 insertions(+), 27 deletions(-)

diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/README.md b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/README.md
index 4d01a633ceb8..eaaaa065a4c1 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/README.md
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/README.md
@@ -208,7 +208,7 @@ int main( void ) {
 
     for ( i = 0; i < 25; i++ ) {
         x = random_uniform( 0, 30.0 );
-        n = (int32_t)stdlib_base_ceil(random_uniform( 1.0, 30.0 ));
+        n = (int32_t)stdlib_base_ceil( random_uniform( 1.0, 30.0 ) );
         y = stdlib_base_dists_signrank_pdf( x, n );
         printf( "x: %lf, n: %d, f(x;n): %lf\n", x, n, y );
     }
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.js b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.js
index aa8e6be1f472..0b4504561587 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.js
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.js
@@ -21,10 +21,8 @@
 // MODULES //
 
 var bench = require( '@stdlib/bench' );
-var Float64Array = require( '@stdlib/array/float64' );
 var uniform = require( '@stdlib/random/array/uniform' );
-var randu = require( '@stdlib/random/base/randu' );
-var ceil = require( '@stdlib/math/base/special/ceil' );
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var pkg = require( './../package.json' ).name;
 var pdf = require( './../lib' );
@@ -40,12 +38,8 @@ bench( pkg, function benchmark( b ) {
 	var i;
 
 	len = 100;
-	x = new Float64Array( len );
-	n = new Float64Array( len );
-	for ( i = 0; i < len; i++ ) {
-		x[ i ] = ( randu() * 30.0 );
-		n[ i ] = ceil( randu() * 30.0 );
-	}
+	x = uniform( len, 0.0, 30.0 );
+	n = discreteUniform( len, 1, 30 );
 
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.native.js
index f3d8d033c31d..d95c93e2dc61 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.native.js
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.native.js
@@ -22,9 +22,8 @@
 
 var resolve = require( 'path' ).resolve;
 var bench = require( '@stdlib/bench' );
-var Float64Array = require( '@stdlib/array/float64' );
-var randu = require( '@stdlib/random/base/randu' );
-var ceil = require( '@stdlib/math/base/special/ceil' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var tryRequire = require( '@stdlib/utils/try-require' );
 var pkg = require( './../package.json' ).name;
@@ -48,12 +47,8 @@ bench( pkg, opts, function benchmark( b ) {
 	var i;
 
 	len = 100;
-	x = new Float64Array( len );
-	n = new Float64Array( len );
-	for ( i = 0; i < len; i++ ) {
-		x[ i ] = ( randu() * 30.0 );
-		n[ i ] = ceil( randu() * 30.0 );
-	}
+	x = uniform( len, 0.0, 30.0 );
+	n = discreteUniform( len, 1, 30 );
 
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/c/benchmark.c b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/c/benchmark.c
index 3395512fc275..9842bfeb2d99 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/c/benchmark.c
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/c/benchmark.c
@@ -103,7 +103,7 @@ static double benchmark( void ) {
 
 	for ( i = 0; i < 100; i++ ) {
 		x[ i ] = random_uniform( 0.0, 30.0 );
-		n[ i ] = (int32_t)stdlib_base_ceil(random_uniform( 1.0, 30.0 ));
+		n[ i ] = (int32_t)stdlib_base_ceil( random_uniform( 1.0, 30.0 ) );
 	}
 
 	t = tic();
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/examples/c/example.c b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/examples/c/example.c
index cf53bd0e34fc..6807c63c5474 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/examples/c/example.c
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/examples/c/example.c
@@ -35,7 +35,7 @@ int main( void ) {
 
 	for ( i = 0; i < 25; i++ ) {
 		x = random_uniform( 0, 30.0 );
-		n = (int32_t)stdlib_base_ceil(random_uniform( 1.0, 30.0 ));
+		n = (int32_t)stdlib_base_ceil( random_uniform( 1.0, 30.0 ) );
 		y = stdlib_base_dists_signrank_pdf( x, n );
 		printf( "x: %lf, n: %d, f(x;n): %lf\n", x, n, y );
 	}
diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/main.c b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/main.c
index 1403b93f83e0..10d30bdaaa7d 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/main.c
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/src/main.c
@@ -27,9 +27,9 @@
 /**
 * Calculates the weight for the (x,n) pair and memoizes the result.
 *
-* @param x Input value
-* @param n Number of observations (must be a non-negative)
-* @return Weight value
+* @param x   input value
+* @param n   number of observations (must be a non-negative)
+* @return    weight value
 */
 static double weights( double x, const int32_t n ) {
 	double mlim;
@@ -50,9 +50,9 @@ static double weights( double x, const int32_t n ) {
 /**
 * Evaluates the probability density function (PDF) of the Wilcoxon signed rank test statistic with `n` observations.
 *
-* @param x Input value
-* @param n Number of observations (must be a non-negative)
-* @return Evaluated PDF
+* @param x   input value
+* @param n   number of observations (must be a non-negative)
+* @return    evaluated PDF
 *
 * @example
 * double y = stdlib_base_dists_signrank_pdf( 7.0, 9 );

From 713cdaf8167e9d5b4ccd5b9eee468f4cf63e4924 Mon Sep 17 00:00:00 2001
From: Philipp Burckhardt <pburckhardt@outlook.com>
Date: Fri, 11 Jul 2025 13:55:11 -0500
Subject: [PATCH 13/13] chore: keep original copyright year

Signed-off-by: Philipp Burckhardt <pburckhardt@outlook.com>
---
 .../stats/base/dists/signrank/pdf/benchmark/benchmark.js        | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.js b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.js
index 0b4504561587..d1ba8ac9fd6d 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.js
+++ b/lib/node_modules/@stdlib/stats/base/dists/signrank/pdf/benchmark/benchmark.js
@@ -1,7 +1,7 @@
 /**
 * @license Apache-2.0
 *
-* Copyright (c) 2025 The Stdlib Authors.
+* Copyright (c) 2020 The Stdlib Authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.