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42 changes: 39 additions & 3 deletions CHANGELOG.md
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Expand Up @@ -290,6 +290,40 @@ A total of 3 issues were closed in this release:

<!-- /.package -->

<section class="package" id="array-base-mskunary5d-unreleased">

#### [@stdlib/array/base/mskunary5d](https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/array/base/mskunary5d)

<details>

<section class="features">

##### Features

- [`b26d9d5`](https://github.com/stdlib-js/stdlib/commit/b26d9d5bd9e60a63ce017bbb470f0769b6dcc628) - add `array/base/mskunary5d` [(#3207)](https://github.com/stdlib-js/stdlib/pull/3207)

</section>

<!-- /.features -->

<section class="issues">

##### Closed Issues

This release closes the following issue:

[#3177](https://github.com/stdlib-js/stdlib/issues/3177)

</section>

<!-- /.issues -->

</details>

</section>

<!-- /.package -->

<section class="package" id="array-bool-unreleased">

#### [@stdlib/array/bool](https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/array/bool)
Expand Down Expand Up @@ -412,9 +446,9 @@ A total of 2 issues were closed in this release:

### Closed Issues

A total of 5 issues were closed in this release:
A total of 6 issues were closed in this release:

[#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), [#3180](https://github.com/stdlib-js/stdlib/issues/3180)
[#3135](https://github.com/stdlib-js/stdlib/issues/3135), [#3138](https://github.com/stdlib-js/stdlib/issues/3138), [#3177](https://github.com/stdlib-js/stdlib/issues/3177), [#3178](https://github.com/stdlib-js/stdlib/issues/3178), [#3179](https://github.com/stdlib-js/stdlib/issues/3179), [#3180](https://github.com/stdlib-js/stdlib/issues/3180)

</section>

Expand All @@ -424,13 +458,14 @@ A total of 5 issues were closed in this release:

### Contributors

A total of 5 people contributed to this release. Thank you to the following contributors:
A total of 6 people contributed to this release. Thank you to the following contributors:

- Aayush Khanna
- Abhijit
- Athan Reines
- Philipp Burckhardt
- Rylan Yang
- Vinit Pandit

</section>

Expand All @@ -442,6 +477,7 @@ A total of 5 people contributed to this release. Thank you to the following cont

<details>

- [`b26d9d5`](https://github.com/stdlib-js/stdlib/commit/b26d9d5bd9e60a63ce017bbb470f0769b6dcc628) - **feat:** add `array/base/mskunary5d` [(#3207)](https://github.com/stdlib-js/stdlib/pull/3207) _(by Vinit Pandit, Athan Reines, Abhijit, stdlib-bot)_
- [`34ae5c9`](https://github.com/stdlib-js/stdlib/commit/34ae5c9570bf6428dc5bede92557ae56981554c2) - **feat:** add `array/base/mskbinary5d` [(#3198)](https://github.com/stdlib-js/stdlib/pull/3198) _(by Abhijit)_
- [`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)_
- [`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)_
Expand Down
124 changes: 124 additions & 0 deletions base/mskunary5d/README.md
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<!--
@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.
-->

# mskunary5d

> Apply a unary callback to elements in a five-dimensional nested input array according to elements in a five-dimensional nested mask array and assign results to elements in a five-dimensional nested output array.
<section class="intro">

</section>

<!-- /.intro -->

<section class="usage">

## Usage

```javascript
var mskunary5d = require( '@stdlib/array/base/mskunary5d' );
```

#### mskunary5d( arrays, shape, fcn )

Applies a unary callback to elements in a five-dimensional nested input array according to elements in a five-dimensional nested mask array and assigns results to elements in a five-dimensional nested output array.

```javascript
var abs = require( '@stdlib/math/base/special/abs' );

var x = [ [ [ [ [ -1.0, -2.0 ], [ -3.0, -4.0 ] ] ] ] ];
var mask = [ [ [ [ [ 0, 1 ], [ 0, 0 ] ] ] ] ];

var shape = [ 1, 1, 1, 2, 2 ];

// Compute the absolute values in-place:
mskunary5d( [ x, mask, x ], shape, abs );
// x => [ [ [ [ [ 1.0, -2.0 ], [ 3.0, 4.0 ] ] ] ] ]
```

The function accepts the following arguments:

- **arrays**: array-like object containing one input nested array, an input nested mask array, and one output nested array.
- **shape**: array shape.
- **fcn**: unary function to apply.

</section>

<!-- /.usage -->

<section class="notes">

## Notes

- The function assumes that the input and output arrays have the same shape.
- An element in an input array is "masked" if the corresponding element in the mask array is non-zero.

</section>

<!-- /.notes -->

<section class="examples">

## Examples

<!-- eslint no-undef: "error" -->

```javascript
var discreteUniform = require( '@stdlib/random/base/discrete-uniform' ).factory;
var bernoulli = require( '@stdlib/random/base/bernoulli' ).factory;
var filled5dBy = require( '@stdlib/array/base/filled5d-by' );
var zeros5d = require( '@stdlib/array/base/zeros5d' );
var abs = require( '@stdlib/math/base/special/abs' );
var mskunary5d = require( '@stdlib/array/base/mskunary5d' );

var shape = [ 1, 2, 2, 3, 3 ];

var x = filled5dBy( shape, discreteUniform( -100, 100 ) );
console.log( x );

var mask = filled5dBy( shape, bernoulli( 0.5 ) );
console.log( mask );

var y = zeros5d( shape );
console.log( y );

mskunary5d( [ x, mask, y ], shape, abs );
console.log( y );
```

</section>

<!-- /.examples -->

<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->

<section class="related">

</section>

<!-- /.related -->

<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="links">

</section>

<!-- /.links -->
128 changes: 128 additions & 0 deletions base/mskunary5d/benchmark/benchmark.js
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/**
* @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.
*/

'use strict';

// MODULES //

var bench = require( '@stdlib/bench' );
var uniform = require( '@stdlib/random/base/uniform' ).factory;
var bernoulli = require( '@stdlib/random/base/bernoulli' ).factory;
var isnan = require( '@stdlib/math/base/assert/is-nan' );
var pow = require( '@stdlib/math/base/special/pow' );
var identity = require( '@stdlib/math/base/special/identity' );
var floor = require( '@stdlib/math/base/special/floor' );
var filled5dBy = require( './../../../base/filled5d-by' );
var zeros5d = require( './../../../base/zeros5d' );
var numel = require( '@stdlib/ndarray/base/numel' );
var pkg = require( './../package.json' ).name;
var mskunary5d = require( './../lib' );


// FUNCTIONS //

/**
* Creates a benchmark function.
*
* @private
* @param {PositiveIntegerArray} shape - array shape
* @returns {Function} benchmark function
*/
function createBenchmark( shape ) {
var arrays;
var x;
var m;
var y;

x = filled5dBy( shape, uniform( -100.0, 100.0 ) );
m = filled5dBy( shape, bernoulli( 0.5 ) );
y = zeros5d( shape );

arrays = [ x, m, y ];

return benchmark;

/**
* Benchmark function.
*
* @private
* @param {Benchmark} b - benchmark instance
*/
function benchmark( b ) {
var i0;
var i1;
var i2;
var i3;
var i4;
var i;

b.tic();
for ( i = 0; i < b.iterations; i++ ) {
mskunary5d( arrays, shape, identity );
i4 = i % shape[ 0 ];
i3 = i % shape[ 1 ];
i2 = i % shape[ 2 ];
i1 = i % shape[ 3 ];
i0 = i % shape[ 4 ];
if ( isnan( arrays[ 2 ][ i4 ][ i3 ][ i2 ][ i1 ][ i0 ] ) ) {
b.fail( 'should not return NaN' );
}
}
b.toc();

i4 = i % shape[ 0 ];
i3 = i % shape[ 1 ];
i2 = i % shape[ 2 ];
i1 = i % shape[ 3 ];
i0 = i % shape[ 4 ];
if ( isnan( arrays[ 2 ][ i4 ][ i3 ][ i2 ][ i1 ][ i0 ] ) ) {
b.fail( 'should not return NaN' );
}
b.pass( 'benchmark finished' );
b.end();
}
}


// MAIN //

/**
* Main execution sequence.
*
* @private
*/
function main() {
var min;
var max;
var sh;
var N;
var f;
var i;

min = 1; // 10^min
max = 6; // 10^max

for ( i = min; i <= max; i++ ) {
N = floor( pow( pow( 10, i ), 1.0/5.0 ) );
sh = [ N, N, N, N, N ];
f = createBenchmark( sh );
bench( pkg+'::equidimensional:size='+numel( sh ), f );
}
}

main();
34 changes: 34 additions & 0 deletions base/mskunary5d/docs/repl.txt
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{{alias}}( arrays, shape, fcn )
Applies a unary callback to elements in a five-dimensional nested input
array according to elements in a five-dimensional nested mask array and
assigns results to elements in a five-dimensional nested output array.

An element in an input array is "masked" if the corresponding element in the
mask array is non-zero.

Parameters
----------
arrays: ArrayLikeObject
Array-like object containing one input nested array, an input nested
mask array, and one output nested array.

shape: Array<integer>
Array shape.

fcn: Function
Unary callback.

Examples
--------
> var x = [ [ [ [ [ -1.0, -2.0 ], [ -3.0, -4.0 ] ] ] ] ];
> var m = [ [ [ [ [ 0, 1 ], [ 0, 0 ] ] ] ] ];
> var y = [ [ [ [ [ 0.0, 0.0 ], [ 0.0, 0.0 ] ] ] ] ];
> var shape = [ 1, 1, 1, 2, 2 ];
> {{alias}}( [ x, m, y ], shape, {{alias:@stdlib/math/base/special/abs}} );
> y
[ [ [ [ [ 1.0, 0.0 ], [ 3.0, 4.0 ] ] ] ] ]

See Also
--------

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