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feat: add stats/strided/dztest2
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‎lib/node_modules/@stdlib/stats/strided/dztest2/README.md

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‎lib/node_modules/@stdlib/stats/strided/dztest2/binding.gyp

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# @license Apache-2.0
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#
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# Copyright (c) 2025 The Stdlib Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# A `.gyp` file for building a Node.js native add-on.
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#
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# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md
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# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md
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{
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# List of files to include in this file:
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'includes': [
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'./include.gypi',
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],
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# Define variables to be used throughout the configuration for all targets:
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'variables': {
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# Target name should match the add-on export name:
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'addon_target_name%': 'addon',
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# Set variables based on the host OS:
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'conditions': [
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[
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'OS=="win"',
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{
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# Define the object file suffix:
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'obj': 'obj',
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},
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{
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# Define the object file suffix:
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'obj': 'o',
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}
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], # end condition (OS=="win")
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], # end conditions
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}, # end variables
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# Define compile targets:
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'targets': [
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# Target to generate an add-on:
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{
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# The target name should match the add-on export name:
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'target_name': '<(addon_target_name)',
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# Define dependencies:
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'dependencies': [],
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# Define directories which contain relevant include headers:
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'include_dirs': [
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# Local include directory:
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'<@(include_dirs)',
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],
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# List of source files:
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'sources': [
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'<@(src_files)',
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],
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# Settings which should be applied when a target's object files are used as linker input:
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'link_settings': {
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# Define libraries:
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'libraries': [
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'<@(libraries)',
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],
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# Define library directories:
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'library_dirs': [
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'<@(library_dirs)',
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],
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},
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# C/C++ compiler flags:
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'cflags': [
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# Enable commonly used warning options:
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'-Wall',
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# Aggressive optimization:
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'-O3',
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],
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# C specific compiler flags:
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'cflags_c': [
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# Specify the C standard to which a program is expected to conform:
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'-std=c99',
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],
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# C++ specific compiler flags:
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'cflags_cpp': [
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# Specify the C++ standard to which a program is expected to conform:
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'-std=c++11',
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],
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# Linker flags:
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'ldflags': [],
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# Apply conditions based on the host OS:
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'conditions': [
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[
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'OS=="mac"',
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{
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# Linker flags:
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'ldflags': [
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'-undefined dynamic_lookup',
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'-Wl,-no-pie',
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'-Wl,-search_paths_first',
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],
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},
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], # end condition (OS=="mac")
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[
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'OS!="win"',
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{
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# C/C++ flags:
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'cflags': [
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# Generate platform-independent code:
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'-fPIC',
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],
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},
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], # end condition (OS!="win")
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], # end conditions
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}, # end target <(addon_target_name)
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# Target to copy a generated add-on to a standard location:
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{
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'target_name': 'copy_addon',
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# Declare that the output of this target is not linked:
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'type': 'none',
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# Define dependencies:
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'dependencies': [
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# Require that the add-on be generated before building this target:
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'<(addon_target_name)',
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],
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# Define a list of actions:
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'actions': [
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{
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'action_name': 'copy_addon',
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'message': 'Copying addon...',
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# Explicitly list the inputs in the command-line invocation below:
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'inputs': [],
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# Declare the expected outputs:
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'outputs': [
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'<(addon_output_dir)/<(addon_target_name).node',
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],
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# Define the command-line invocation:
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'action': [
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'cp',
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'<(PRODUCT_DIR)/<(addon_target_name).node',
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'<(addon_output_dir)/<(addon_target_name).node',
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],
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},
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], # end actions
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}, # end target copy_addon
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], # end targets
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}

‎lib/node_modules/@stdlib/stats/strided/dztest2/examples/index.js

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2025 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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var Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
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var normal = require( '@stdlib/random/array/normal' );
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var dztest2 = require( './../lib' );
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var x = normal( 1000, 4.0, 2.0, {
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'dtype': 'float64'
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});
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var y = normal( 800, 3.0, 2.0, {
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'dtype': 'float64'
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});
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var results = new Results();
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var out = dztest2( x.length, y.length, 'two-sided', 0.05, 1.0, 2.0, 2.0, x, 1, y, 1, results );
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// returns {...}
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console.log( out.toString() );

‎lib/node_modules/@stdlib/stats/strided/dztest2/include.gypi

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# @license Apache-2.0
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#
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# Copyright (c) 2025 The Stdlib Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# A GYP include file for building a Node.js native add-on.
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#
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# Main documentation:
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#
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# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md
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# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md
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{
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# Define variables to be used throughout the configuration for all targets:
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'variables': {
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# Source directory:
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'src_dir': './src',
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# Include directories:
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'include_dirs': [
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'<!@(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 ] ); }")',
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],
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# Add-on destination directory:
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'addon_output_dir': './src',
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# Source files:
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'src_files': [
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'<(src_dir)/addon.c',
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'<!@(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 ] ); }")',
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],
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# Library dependencies:
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'libraries': [
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'<!@(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 ] ); }")',
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],
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# Library directories:
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'library_dirs': [
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'<!@(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 ] ); }")',
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],
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}, # end variables
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}

‎lib/node_modules/@stdlib/stats/strided/dztest2/include/stdlib/stats/strided/dztest2.h

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2025 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef STDLIB_STATS_STRIDED_DZTEST2_H
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#define STDLIB_STATS_STRIDED_DZTEST2_H
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#include "stdlib/stats/base/ztest/two-sample/results/float64.h"
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#include "stdlib/stats/base/ztest/alternatives.h"
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#include "stdlib/blas/base/shared.h"
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/*
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* If C++, prevent name mangling so that the compiler emits a binary file having undecorated names, thus mirroring the behavior of a C compiler.
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* Computes a two-sample Z-test for double-precision floating-point strided arrays.
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*/
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void API_SUFFIX(stdlib_strided_dztest2)( const CBLAS_INT NX, const CBLAS_INT NY, const enum STDLIB_STATS_ZTEST_ALTERNATIVE alternative, const double alpha, const double diff, const double sigmax, const double sigmay, const double *X, const CBLAS_INT strideX, const double *Y, const CBLAS_INT strideY, struct stdlib_stats_ztest_two_sample_float64_results *results );
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/**
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* Computes a two-sample Z-test for double-precision floating-point strided arrays using alternative indexing semantics.
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*/
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void API_SUFFIX(stdlib_strided_dztest2_ndarray)( const CBLAS_INT NX, const CBLAS_INT NY, const enum STDLIB_STATS_ZTEST_ALTERNATIVE alternative, const double alpha, const double diff, const double sigmax, const double sigmay, const double *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, const double *Y, const CBLAS_INT strideY, const CBLAS_INT offsetY, struct stdlib_stats_ztest_two_sample_float64_results *results );
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#ifdef __cplusplus
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}
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#endif
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#endif // !STDLIB_STATS_STRIDED_DZTEST_H

‎lib/node_modules/@stdlib/stats/strided/dztest2/lib/dztest2.js

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2025 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var stride2offset = require( '@stdlib/strided/base/stride2offset' );
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var ndarray = require( './ndarray.js' );
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// MAIN //
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/**
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* Computes a two-sample Z-test for double-precision floating-point strided arrays.
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*
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* @param {PositiveInteger} NX - number of indexed elements in `x`
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* @param {PositiveInteger} NY - number of indexed elements in `y`
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* @param {(integer|string)} alternative - alternative hypothesis
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* @param {number} alpha - significance level
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* @param {number} diff - difference in means under the null hypothesis
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* @param {PositiveNumber} sigmax - known standard deviation of `x`
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* @param {PositiveNumber} sigmay - known standard deviation of `y`
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* @param {Collection} x - input array
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* @param {integer} strideX - stride length for `x`
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* @param {Collection} y - input array
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* @param {integer} strideY - stride length for `y`
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* @param {Object} out - output results object
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* @returns {Object} results object
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*
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* @example
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* var Float64Array = require( '@stdlib/array/float64' );
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* var Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
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*
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* var x = new Float64Array( [ 4.0, 4.0, 6.0, 6.0, 5.0 ] );
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* var y = new Float64Array( [ 3.0, 3.0, 5.0, 7.0, 7.0 ] );
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*
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* var results = new Results();
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* var out = dztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 2.0, x, 1, y, 1, results );
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* // returns {...}
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*
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* var bool = ( out === results );
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* // returns true
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*/
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function dztest2( NX, NY, alternative, alpha, diff, sigmax, sigmay, x, strideX, y, strideY, out ) { // eslint-disable-line max-len, max-params
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return ndarray( NX, NY, alternative, alpha, diff, sigmax, sigmay, x, strideX, stride2offset( NX, strideX ), y, strideY, stride2offset( NY, strideY ), out ); // eslint-disable-line max-len
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}
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// EXPORTS //
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module.exports = dztest2;

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