Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

feat: add array/base/unary5d-by #3221

Open
wants to merge 11 commits into
base: develop
Choose a base branch
from
180 changes: 180 additions & 0 deletions lib/node_modules/@stdlib/array/base/unary5d-by/README.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,180 @@
<!--

@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.

-->

# unary5dBy

> Apply a unary function to each element retrieved from a five-dimensional nested input array according to a callback function and assign results to elements in a five-dimensional nested output array.

<section class="intro">

</section>

<!-- /.intro -->

<section class="usage">

## Usage

```javascript
var unary5dBy = require( '@stdlib/array/base/unary5d-by' );
```

#### unary5dBy( arrays, shape, fcn, clbk\[, thisArg] )

Applies a unary function to each element retrieved from a five-dimensional nested input array according to a callback function and assigns results to elements in a five-dimensional nested output array.

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

function accessor( v ) {
return v * 2.0;
}

var x = [ [ [ [ [ -1.0, -2.0 ], [ -3.0, -4.0 ] ] ] ] ];
var shape = [ 1, 1, 1, 2, 2 ];

unary5dBy( [ x, x ], shape, abs, accessor );
// x => [ [ [ [ [ 2.0, 4.0 ], [ 6.0, 8.0 ] ] ] ] ]
```

The function accepts the following arguments:

- **arrays**: array-like object containing one input nested array and one output nested array.
- **shape**: array shape.
- **fcn**: unary function to apply to callback return values.
- **clbk**: callback function.
- **thisArg**: callback function execution context (optional).

The invoked callback function is provided the following arguments:

- **value**: array element.
- **indices**: current array element indices.
- **arrays**: input and output arrays.

To set the callback execution context, provide a `thisArg`.

<!-- eslint-disable no-invalid-this -->

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

function accessor( v ) {
this.count += 1;
return v * 2.0;
}

var context = {
'count': 0
};

var x = [ [ [ [ [ -1.0, -2.0 ], [ -3.0, -4.0 ] ] ] ] ];
var y = [ [ [ [ [ 0.0, 0.0 ], [ 0.0, 0.0 ] ] ] ] ];

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

unary5dBy( [ x, y ], shape, abs, accessor, context );
// y => [ [ [ [ [ 2.0, 4.0 ], [ 6.0, 8.0 ] ] ] ] ]

var cnt = context.count;
// returns 4
```

</section>

<!-- /.usage -->

<section class="notes">

## Notes

- If a provided callback function does not return any value (or equivalently, explicitly returns `undefined`), the value is **ignored**.

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

function accessor() {
// No-op...
}

var x = [ [ [ [ [ -1.0, -2.0 ], [ -3.0, -4.0 ] ] ] ] ];
var y = [ [ [ [ [ 0.0, 0.0 ], [ 0.0, 0.0 ] ] ] ] ];

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

unary5dBy( [ x, y ], shape, abs, accessor );
// y => [ [ [ [ [ 0.0, 0.0 ], [ 0.0, 0.0 ] ] ] ] ]
```

- The function assumes that the input and output arrays have the same shape.

</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' );
var filled5dBy = require( '@stdlib/array/base/filled5d-by' );
var zeros5d = require( '@stdlib/array/base/zeros5d' );
var abs = require( '@stdlib/math/base/special/abs' );
var unary5dBy = require( '@stdlib/array/base/unary5d-by' );

function accessor( v ) {
// Randomly determine whether a value should be considered "missing":
return ( bernoulli( 0.5 ) > 0 ) ? v : void 0;
}

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

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

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

unary5dBy( [ x, y ], shape, abs, accessor );
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 -->
136 changes: 136 additions & 0 deletions lib/node_modules/@stdlib/array/base/unary5d-by/benchmark/benchmark.js
Original file line number Diff line number Diff line change
@@ -0,0 +1,136 @@
/**
* @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 isnan = require( '@stdlib/math/base/assert/is-nan' );
var pow = require( '@stdlib/math/base/special/pow' );
var floor = require( '@stdlib/math/base/special/floor' );
var identity = require( '@stdlib/math/base/special/identity' );
var filled5dBy = require( '@stdlib/array/base/filled5d-by' );
var zeros5d = require( '@stdlib/array/base/zeros5d' );
var numel = require( '@stdlib/ndarray/base/numel' );
var pkg = require( './../package.json' ).name;
var unary5dBy = require( './../lib' );


// FUNCTIONS //

/**
* Accessor function.
*
* @private
* @param {number} value - array element
* @returns {number} accessed value
*/
function accessor( value ) {
return value;
}

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

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

arrays = [ x, 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++ ) {
unary5dBy( arrays, shape, identity, accessor );
i4 = i % shape[ 0 ];
i3 = i % shape[ 1 ];
i2 = i % shape[ 2 ];
i1 = i % shape[ 3 ];
i0 = i % shape[ 4 ];
if ( isnan( arrays[ 1 ][ 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[ 1 ][ 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+'::square_matrix:size='+numel( sh ), f );
}
}

main();
46 changes: 46 additions & 0 deletions lib/node_modules/@stdlib/array/base/unary5d-by/docs/repl.txt
Original file line number Diff line number Diff line change
@@ -0,0 +1,46 @@

{{alias}}( arrays, shape, fcn, clbk[, thisArg] )
Applies a unary function to each element retrieved from a five-dimensional
nested input array according to a callback function and assigns results to
elements in a five-dimensional nested output array.

The callback function is provided the following arguments:

- value: array element.
- indices: current array element indices.
- arrays: input and output arrays.

If the callback function does not return any value (or equivalently,
explicitly returns `undefined`), the value is ignored.

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

shape: Array<integer>
Array shape.

fcn: Function
Unary function to apply to callback return values.

clbk: Function
Callback function.

thisArg: any (optional)
Callback execution context.

Examples
--------
> var x = [ [ [ [ [ -1.0, -2.0 ], [ -3.0, -4.0 ] ] ] ] ];
> var y = [ [ [ [ [ 0.0, 0.0 ], [ 0.0, 0.0 ] ] ] ] ];
> var shape = [ 1, 1, 1, 2, 2 ];
> function clbk( v ) { return v * 2.0; };
> {{alias}}( [ x, y ], shape, {{alias:@stdlib/math/base/special/abs}}, clbk );
> y
[ [ [ [ [ 2.0, 4.0 ], [ 6.0, 8.0 ] ] ] ] ]

See Also
--------

Loading
Loading