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@@ -83,6 +83,7 @@ Roman Stetsyk <[email protected]> | |
| Rutam <[email protected]> | ||
| Ruthwik Chikoti <[email protected]> | ||
| Ryan Seal <[email protected]> | ||
| Rylan Yang <[email protected]> | ||
| Sai Srikar Dumpeti <[email protected]> | ||
| SarthakPaandey <[email protected]> | ||
| Saurabh Singh <[email protected]> | ||
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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. | ||
| --> | ||
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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. | ||
| <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 | ||
| var mskbinary4d = require( '@stdlib/array/base/mskbinary4d' ); | ||
| ``` | ||
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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 | ||
| var add = require( '@stdlib/math/base/ops/add' ); | ||
| var zeros4d = require( '@stdlib/array/base/zeros4d' ); | ||
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| var x = [ [ [ [ 1.0, 2.0 ], [ 3.0, 4.0 ] ] ] ]; | ||
| 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 ); | ||
| // z => [ [ [ [ 2.0, 0.0 ], [ 6.0, 8.0 ] ] ] ] | ||
| ``` | ||
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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. | ||
| - **shape**: array shape. | ||
| - **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 | ||
| var discreteUniform = require( '@stdlib/random/base/discrete-uniform' ).factory; | ||
| var bernoulli = require( '@stdlib/random/base/bernoulli' ).factory; | ||
| var filled4dBy = require( '@stdlib/array/base/filled4d-by' ); | ||
| var zeros4d = require( '@stdlib/array/base/zeros4d' ); | ||
| var add = require( '@stdlib/math/base/ops/add' ); | ||
| 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 ) ); | ||
| console.log( x ); | ||
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| var y = filled4dBy( shape, discreteUniform( -100, 100 ) ); | ||
| console.log( y ); | ||
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| var mask = filled4dBy( shape, bernoulli( 0.5 ) ); | ||
| console.log( mask ); | ||
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| var z = zeros4d( shape ); | ||
| console.log( z ); | ||
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| mskbinary4d( [ x, y, mask, z ], shape, add ); | ||
| console.log( z ); | ||
| ``` | ||
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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 --> |
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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. | ||
| */ | ||
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| 'use strict'; | ||
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| // MODULES // | ||
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| 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 floor = require( '@stdlib/math/base/special/floor' ); | ||
| var add = require( '@stdlib/math/base/ops/add' ); | ||
| var filled4dBy = require( './../../../base/filled4d-by' ); | ||
| var zeros4d = require( './../../../base/zeros4d' ); | ||
| var numel = require( '@stdlib/ndarray/base/numel' ); | ||
| var pkg = require( './../package.json' ).name; | ||
| var mskbinary4d = require( './../lib' ); | ||
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| // FUNCTIONS // | ||
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| /** | ||
| * Creates a benchmark function. | ||
| * | ||
| * @private | ||
| * @param {PositiveIntegerArray} shape - array shape | ||
| * @returns {Function} benchmark function | ||
| */ | ||
| function createBenchmark( shape ) { | ||
| var arrays; | ||
| var x; | ||
| var y; | ||
| var z; | ||
| var m; | ||
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| x = filled4dBy( shape, uniform( -100.0, 100.0 ) ); | ||
| y = filled4dBy( shape, uniform( -100.0, 100.0 ) ); | ||
| m = filled4dBy( shape, bernoulli( 0.5 ) ); | ||
| z = zeros4d( shape ); | ||
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| arrays = [ x, y, m, z ]; | ||
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| return benchmark; | ||
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| /** | ||
| * Benchmark function. | ||
| * | ||
| * @private | ||
| * @param {Benchmark} b - benchmark instance | ||
| */ | ||
| function benchmark( b ) { | ||
| var i0; | ||
| var i1; | ||
| var i2; | ||
| var i3; | ||
| var i; | ||
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| b.tic(); | ||
| for ( i = 0; i < b.iterations; i++ ) { | ||
| mskbinary4d( arrays, shape, add ); | ||
| i3 = i % shape[ 0 ]; | ||
| i2 = i % shape[ 1 ]; | ||
| i1 = i % shape[ 2 ]; | ||
| i0 = i % shape[ 3 ]; | ||
| if ( isnan( arrays[ 3 ][ i3 ][ i2 ][ i1 ][ i0 ] ) ) { | ||
| b.fail( 'should not return NaN' ); | ||
| } | ||
| } | ||
| b.toc(); | ||
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| i3 = i % shape[ 0 ]; | ||
| i2 = i % shape[ 1 ]; | ||
| i1 = i % shape[ 2 ]; | ||
| i0 = i % shape[ 3 ]; | ||
| if ( isnan( arrays[ 3 ][ i3 ][ i2 ][ i1 ][ i0 ] ) ) { | ||
| b.fail( 'should not return NaN' ); | ||
| } | ||
| b.pass( 'benchmark finished' ); | ||
| b.end(); | ||
| } | ||
| } | ||
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| // MAIN // | ||
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| /** | ||
| * Main execution sequence. | ||
| * | ||
| * @private | ||
| */ | ||
| function main() { | ||
| var min; | ||
| var max; | ||
| var sh; | ||
| var N; | ||
| var f; | ||
| var i; | ||
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| min = 1; // 10^min | ||
| max = 6; // 10^max | ||
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| for ( i = min; i <= max; i++ ) { | ||
| N = floor( pow( pow( 10, i ), 1.0/4.0 ) ); | ||
| sh = [ N, N, N, N ]; | ||
| f = createBenchmark( sh ); | ||
| bench( pkg+'::equidimensional:size='+numel( sh ), f ); | ||
| } | ||
| } | ||
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| main(); |
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| {{alias}}( arrays, shape, fcn ) | ||
| 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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| An element in an input array is "masked" if the corresponding element in the | ||
| mask array is non-zero. | ||
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| Parameters | ||
| ---------- | ||
| arrays: ArrayLikeObject | ||
| Array-like object containing two input nested arrays, an input nested | ||
| mask array, and one output nested array. | ||
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| shape: Array<integer> | ||
| Array shape. | ||
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| fcn: Function | ||
| Binary callback. | ||
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| Examples | ||
| -------- | ||
| > var x = [ [ [ [ 1.0, 2.0 ], [ 3.0, 4.0 ] ] ] ]; | ||
| > var y = [ [ [ [ 1.0, 2.0 ], [ 3.0, 4.0 ] ] ] ]; | ||
| > var m = [ [ [ [ 0, 1 ], [ 0, 0 ] ] ] ]; | ||
| > var z = [ [ [ [ 0.0, 0.0 ], [ 0.0, 0.0 ] ] ] ]; | ||
| > var shape = [ 1, 1, 2, 2 ]; | ||
| > {{alias}}( [ x, y, m, z ], shape, {{alias:@stdlib/math/base/ops/add}} ); | ||
| > z | ||
| [ [ [ [ 2.0, 0.0 ], [ 6.0, 8.0 ] ] ] ] | ||
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| See Also | ||
| -------- | ||
|
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