feat: add the C src files

Author: anandkaranubc

lib/node_modules/@stdlib/stats/base/dists/hypergeometric/kurtosis/include/stdlib/stats/base/dists/hypergeometric/kurtosis.h

@@ -0,0 +1,43 @@
+/**
+ * @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_HYPERGEOMETRIC_KURTOSIS_H
+#define STDLIB_STATS_BASE_DISTS_HYPERGEOMETRIC_KURTOSIS_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
+
+/**
+ * Returns the excess kurtosis of a hypergeometric distribution with population size `N`, subpopulation size `K`, and number of draws `n`.
+ *
+ * @param N    population size
+ * @param K    subpopulation size
+ * @param n    number of draws
+ * @return     kurtosis of the distribution
+ */
+double stdlib_base_dists_hypergeometric_kurtosis( const double N, const double K, const double n );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // !STDLIB_STATS_BASE_DISTS_HYPERGEOMETRIC_KURTOSIS_H

lib/node_modules/@stdlib/stats/base/dists/hypergeometric/kurtosis/src/Makefile

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+#/
+# @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

lib/node_modules/@stdlib/stats/base/dists/hypergeometric/kurtosis/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/math/base/napi/ternary.h"
+#include "stdlib/stats/base/dists/hypergeometric/kurtosis.h"
+
+// cppcheck-suppress shadowFunction
+STDLIB_MATH_BASE_NAPI_MODULE_DDD_D( stdlib_base_dists_hypergeometric_kurtosis )

lib/node_modules/@stdlib/stats/base/dists/hypergeometric/kurtosis/src/main.c

@@ -0,0 +1,61 @@
+/**
+* @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/math/base/assert/is_nonnegative_integer.h"
+#include "stdlib/constants/float64/pinf.h"
+
+/**
+* Returns the excess kurtosis of a hypergeometric distribution.
+*
+* @param N    population size
+* @param K    subpopulation size
+* @param n    number of draws
+* @return     kurtosis of the distribution, or NaN if inputs are invalid
+*
+* @example
+* double k = stdlib_base_dists_hypergeometric_kurtosis( 16, 11, 4 );
+* // returns ~-0.326
+*
+* @example
+* double k = stdlib_base_dists_hypergeometric_kurtosis( 4, 2, 2 );
+* // returns 0.0
+*
+* @example
+* double k = stdlib_base_dists_hypergeometric_kurtosis( 10, 5, 12 );
+* // returns NaN
+*/
+double stdlib_base_dists_hypergeometric_kurtosis( const double N, const double K, const double n ) {
+    if (
+        !stdlib_base_is_nonnegative_integer( N ) ||
+        !stdlib_base_is_nonnegative_integer( K ) ||
+        !stdlib_base_is_nonnegative_integer( n ) ||
+        N == STDLIB_CONSTANT_FLOAT64_PINF ||
+        K == STDLIB_CONSTANT_FLOAT64_PINF ||
+        K > N ||
+        n > N
+    ) {
+        return NAN;
+    }
+
+    double p = (N - 1) * (N * N) * ((N * (N + 1)) - (6 * K * (N - K)) - (6 * n * (N - n)));
+    p += 6.0 * n * K * (N - K) * (N - n) * ((5.0 * N) - 6.0);
+
+    double q = n * K * (N - K) * (N - n) * (N - 2) * (N - 3);
+
+    return p / q;
+}