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‎CHANGELOG.md‎

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<section class="release" id="unreleased">
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## Unreleased (2024-11-22)
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## Unreleased (2024-11-25)
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<section class="packages">
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##### Features
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- [`cb27ec4`](https://github.com/stdlib-js/stdlib/commit/cb27ec42bd7e65c46877e57064d36ff9b38b502b) - add `array/base/mskbinary4d` [(#3196)](https://github.com/stdlib-js/stdlib/pull/3196)
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- [`c328fc5`](https://github.com/stdlib-js/stdlib/commit/c328fc515fc925ee717ed9cd844cca83a61da806) - add `array/base/mskbinary3d` [(#3193)](https://github.com/stdlib-js/stdlib/pull/3193)
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</section>
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##### Closed Issues
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This release closes the following issue:
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A total of 2 issues were closed in this release:
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[#3178](https://github.com/stdlib-js/stdlib/issues/3178)
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[#3178](https://github.com/stdlib-js/stdlib/issues/3178), [#3179](https://github.com/stdlib-js/stdlib/issues/3179)
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</section>
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### Closed Issues
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A total of 3 issues were closed in this release:
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A total of 4 issues were closed in this release:
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[#3135](https://github.com/stdlib-js/stdlib/issues/3135), [#3138](https://github.com/stdlib-js/stdlib/issues/3138), [#3178](https://github.com/stdlib-js/stdlib/issues/3178)
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[#3135](https://github.com/stdlib-js/stdlib/issues/3135), [#3138](https://github.com/stdlib-js/stdlib/issues/3138), [#3178](https://github.com/stdlib-js/stdlib/issues/3178), [#3179](https://github.com/stdlib-js/stdlib/issues/3179)
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</section>
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### Contributors
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A total of 4 people contributed to this release. Thank you to the following contributors:
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A total of 5 people contributed to this release. Thank you to the following contributors:
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- Aayush Khanna
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- Abhijit
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- Athan Reines
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- Philipp Burckhardt
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- Rylan Yang
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<details>
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- [`cb27ec4`](https://github.com/stdlib-js/stdlib/commit/cb27ec42bd7e65c46877e57064d36ff9b38b502b) - **feat:** add `array/base/mskbinary4d` [(#3196)](https://github.com/stdlib-js/stdlib/pull/3196) _(by Abhijit, Athan Reines)_
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- [`e3a2173`](https://github.com/stdlib-js/stdlib/commit/e3a2173a24bd8634f333cace626fc2d71740ebd3) - **feat:** add `every` method to `array/fixed-endian-factory` [(#3200)](https://github.com/stdlib-js/stdlib/pull/3200) _(by Aayush Khanna, Athan Reines)_
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- [`c328fc5`](https://github.com/stdlib-js/stdlib/commit/c328fc515fc925ee717ed9cd844cca83a61da806) - **feat:** add `array/base/mskbinary3d` [(#3193)](https://github.com/stdlib-js/stdlib/pull/3193) _(by Rylan Yang, Athan Reines, stdlib-bot)_
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- [`9ba0dbd`](https://github.com/stdlib-js/stdlib/commit/9ba0dbd839707695a05fda5d4f50d67c5aba52f7) - **chore:** use relative paths to load main package export _(by Philipp Burckhardt)_

‎CONTRIBUTORS‎

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Rutam <[email protected]>
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Ruthwik Chikoti <[email protected]>
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Ryan Seal <[email protected]>
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Rylan Yang <[email protected]>
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Sai Srikar Dumpeti <[email protected]>
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SarthakPaandey <[email protected]>
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Saurabh Singh <[email protected]>

‎base/mskbinary4d/README.md‎

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<!--
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@license Apache-2.0
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Copyright (c) 2024 The Stdlib Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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# mskbinary4d
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> Apply a binary callback to elements in two four-dimensional nested input arrays according to elements in a four-dimensional nested mask array and assign results to elements in a four-dimensional nested output array.
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<section class="intro">
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</section>
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<!-- /.intro -->
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<section class="usage">
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## Usage
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```javascript
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var mskbinary4d = require( '@stdlib/array/base/mskbinary4d' );
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```
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#### mskbinary4d( arrays, shape, fcn )
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Applies a binary callback to elements in two four-dimensional nested input arrays according to elements in a four-dimensional nested mask array and assigns results to elements in a four-dimensional nested output array.
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```javascript
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var add = require( '@stdlib/math/base/ops/add' );
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var zeros4d = require( '@stdlib/array/base/zeros4d' );
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var x = [ [ [ [ 1.0, 2.0 ], [ 3.0, 4.0 ] ] ] ];
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var z = zeros4d( [ 1, 1, 2, 2 ] );
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var mask = [ [ [ [ 0, 1 ], [ 0, 0 ] ] ] ];
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var shape = [ 1, 1, 2, 2 ];
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mskbinary4d( [ x, x, mask, z ], shape, add );
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// z => [ [ [ [ 2.0, 0.0 ], [ 6.0, 8.0 ] ] ] ]
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```
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The function accepts the following arguments:
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- **arrays**: array-like object containing two input nested arrays, an input nested mask array, and one output nested array.
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- **shape**: array shape.
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- **fcn**: binary function to apply.
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</section>
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<!-- /.usage -->
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<section class="notes">
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## Notes
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- The function assumes that the input and output arrays have the same shape.
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</section>
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<!-- /.notes -->
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<section class="examples">
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## Examples
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<!-- eslint no-undef: "error" -->
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```javascript
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var discreteUniform = require( '@stdlib/random/base/discrete-uniform' ).factory;
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var bernoulli = require( '@stdlib/random/base/bernoulli' ).factory;
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var filled4dBy = require( '@stdlib/array/base/filled4d-by' );
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var zeros4d = require( '@stdlib/array/base/zeros4d' );
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var add = require( '@stdlib/math/base/ops/add' );
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var mskbinary4d = require( '@stdlib/array/base/mskbinary4d' );
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var shape = [ 2, 1, 3, 3 ];
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var x = filled4dBy( shape, discreteUniform( -100, 100 ) );
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console.log( x );
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var y = filled4dBy( shape, discreteUniform( -100, 100 ) );
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console.log( y );
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var mask = filled4dBy( shape, bernoulli( 0.5 ) );
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console.log( mask );
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var z = zeros4d( shape );
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console.log( z );
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mskbinary4d( [ x, y, mask, z ], shape, add );
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console.log( z );
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```
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</section>
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<!-- /.examples -->
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<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
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<section class="related">
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</section>
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<!-- /.related -->
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<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
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<section class="links">
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</section>
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<!-- /.links -->

‎base/mskbinary4d/benchmark/benchmark.js‎

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2024 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 bench = require( '@stdlib/bench' );
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var uniform = require( '@stdlib/random/base/uniform' ).factory;
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var bernoulli = require( '@stdlib/random/base/bernoulli' ).factory;
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var isnan = require( '@stdlib/math/base/assert/is-nan' );
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var pow = require( '@stdlib/math/base/special/pow' );
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var floor = require( '@stdlib/math/base/special/floor' );
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var add = require( '@stdlib/math/base/ops/add' );
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var filled4dBy = require( './../../../base/filled4d-by' );
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var zeros4d = require( './../../../base/zeros4d' );
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var numel = require( '@stdlib/ndarray/base/numel' );
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var pkg = require( './../package.json' ).name;
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var mskbinary4d = require( './../lib' );
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// FUNCTIONS //
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/**
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* Creates a benchmark function.
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*
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* @private
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* @param {PositiveIntegerArray} shape - array shape
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* @returns {Function} benchmark function
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*/
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function createBenchmark( shape ) {
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var arrays;
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var x;
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var y;
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var z;
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var m;
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x = filled4dBy( shape, uniform( -100.0, 100.0 ) );
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y = filled4dBy( shape, uniform( -100.0, 100.0 ) );
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m = filled4dBy( shape, bernoulli( 0.5 ) );
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z = zeros4d( shape );
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arrays = [ x, y, m, z ];
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return benchmark;
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/**
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* Benchmark function.
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*
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* @private
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* @param {Benchmark} b - benchmark instance
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*/
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function benchmark( b ) {
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var i0;
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var i1;
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var i2;
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var i3;
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var i;
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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mskbinary4d( arrays, shape, add );
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i3 = i % shape[ 0 ];
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i2 = i % shape[ 1 ];
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i1 = i % shape[ 2 ];
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i0 = i % shape[ 3 ];
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if ( isnan( arrays[ 3 ][ i3 ][ i2 ][ i1 ][ i0 ] ) ) {
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b.fail( 'should not return NaN' );
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}
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}
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b.toc();
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i3 = i % shape[ 0 ];
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i2 = i % shape[ 1 ];
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i1 = i % shape[ 2 ];
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i0 = i % shape[ 3 ];
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if ( isnan( arrays[ 3 ][ i3 ][ i2 ][ i1 ][ i0 ] ) ) {
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b.fail( 'should not return NaN' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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}
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}
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// MAIN //
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/**
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* Main execution sequence.
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*
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* @private
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*/
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function main() {
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var min;
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var max;
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var sh;
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var N;
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var f;
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var i;
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min = 1; // 10^min
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max = 6; // 10^max
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for ( i = min; i <= max; i++ ) {
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N = floor( pow( pow( 10, i ), 1.0/4.0 ) );
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sh = [ N, N, N, N ];
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f = createBenchmark( sh );
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bench( pkg+'::equidimensional:size='+numel( sh ), f );
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}
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}
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main();

‎base/mskbinary4d/docs/repl.txt‎

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{{alias}}( arrays, shape, fcn )
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Applies a binary callback to elements in two four-dimensional nested input
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arrays according to elements in a four-dimensional nested mask array and
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assigns results to elements in a four-dimensional nested output array.
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An element in an input array is "masked" if the corresponding element in the
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mask array is non-zero.
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Parameters
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----------
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arrays: ArrayLikeObject
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Array-like object containing two input nested arrays, an input nested
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mask array, and one output nested array.
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shape: Array<integer>
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Array shape.
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fcn: Function
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Binary callback.
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Examples
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--------
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> var x = [ [ [ [ 1.0, 2.0 ], [ 3.0, 4.0 ] ] ] ];
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> var y = [ [ [ [ 1.0, 2.0 ], [ 3.0, 4.0 ] ] ] ];
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> var m = [ [ [ [ 0, 1 ], [ 0, 0 ] ] ] ];
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> var z = [ [ [ [ 0.0, 0.0 ], [ 0.0, 0.0 ] ] ] ];
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> var shape = [ 1, 1, 2, 2 ];
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> {{alias}}( [ x, y, m, z ], shape, {{alias:@stdlib/math/base/ops/add}} );
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> z
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[ [ [ [ 2.0, 0.0 ], [ 6.0, 8.0 ] ] ] ]
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See Also
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--------
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