Auto-generated commit

base/lib/index.js

@@ -612,6 +612,15 @@ setReadOnly( ns, 'ones5d', require( './../../base/ones5d' ) );
 */
 setReadOnly( ns, 'onesnd', require( './../../base/onesnd' ) );
 
+/**
+* @name quaternary2d
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/array/base/quaternary2d}
+*/
+setReadOnly( ns, 'quaternary2d', require( './../../base/quaternary2d' ) );
+
 /**
 * @name setter
 * @memberof ns

base/quaternary2d/README.md

@@ -0,0 +1,134 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2023 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.
+
+-->
+
+# quaternary2d
+
+> Apply a quaternary callback to elements in four two-dimensional nested input arrays and assign results to elements in a two-dimensional nested output array.
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var quaternary2d = require( '@stdlib/array/base/quaternary2d' );
+```
+
+#### quaternary2d( arrays, shape, fcn )
+
+Applies a quaternary callback to elements in four two-dimensional nested input arrays and assigns results to elements in a two-dimensional nested output array.
+
+```javascript
+var zeros2d = require( '@stdlib/array/base/zeros2d' );
+
+function add( x, y, z, w ) {
+    return x + y + z + w;
+}
+
+var x = [ [ 1.0, 2.0 ], [ 3.0, 4.0 ] ];
+var out = zeros2d( [ 2, 2 ] );
+
+var shape = [ 2, 2 ];
+
+quaternary2d( [ x, x, x, x, out ], shape, add );
+// out => [ [ 4.0, 8.0 ], [ 12.0, 16.0 ] ]
+```
+
+The function accepts the following arguments:
+
+-   **arrays**: array-like object containing four input nested arrays and one output nested array.
+-   **shape**: array shape.
+-   **fcn**: quaternary function to apply.
+
+</section>
+
+<!-- /.usage -->
+
+<section class="notes">
+
+## Notes
+
+-   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 filled2dBy = require( '@stdlib/array/base/filled2d-by' );
+var zeros2d = require( '@stdlib/array/base/zeros2d' );
+var quaternary2d = require( '@stdlib/array/base/quaternary2d' );
+
+function add( x, y, z, w ) {
+    return x + y + z + w;
+}
+
+var shape = [ 3, 3 ];
+
+var x = filled2dBy( shape, discreteUniform( -100, 100 ) );
+console.log( x );
+
+var y = filled2dBy( shape, discreteUniform( -100, 100 ) );
+console.log( y );
+
+var z = filled2dBy( shape, discreteUniform( -100, 100 ) );
+console.log( z );
+
+var w = filled2dBy( shape, discreteUniform( -100, 100 ) );
+console.log( w );
+
+var out = zeros2d( shape );
+console.log( out );
+
+quaternary2d( [ x, y, z, w, out ], shape, add );
+console.log( out );
+```
+
+</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 -->

base/quaternary2d/benchmark/benchmark.js

@@ -0,0 +1,135 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2023 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 filled2dBy = require( './../../../base/filled2d-by' );
+var zeros2d = require( './../../../base/zeros2d' );
+var numel = require( '@stdlib/ndarray/base/numel' );
+var pkg = require( './../package.json' ).name;
+var quaternary2d = require( './../lib' );
+
+
+// FUNCTIONS //
+
+/**
+* Returns the sum.
+*
+* @private
+* @param {number} x - first value
+* @param {number} y - second value
+* @param {number} z - third value
+* @param {number} w - fourth value
+* @returns {number} sum
+*/
+function add( x, y, z, w ) {
+	return x + y + z + w;
+}
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveIntegerArray} shape - array shape
+* @returns {Function} benchmark function
+*/
+function createBenchmark( shape ) {
+	var arrays;
+	var out;
+	var x;
+	var y;
+	var z;
+	var w;
+
+	x = filled2dBy( shape, uniform( -100.0, 100.0 ) );
+	y = filled2dBy( shape, uniform( -100.0, 100.0 ) );
+	z = filled2dBy( shape, uniform( -100.0, 100.0 ) );
+	w = filled2dBy( shape, uniform( -100.0, 100.0 ) );
+	out = zeros2d( shape );
+
+	arrays = [ x, y, z, w, out ];
+
+	return benchmark;
+
+	/**
+	* Benchmark function.
+	*
+	* @private
+	* @param {Benchmark} b - benchmark instance
+	*/
+	function benchmark( b ) {
+		var i0;
+		var i1;
+		var i;
+
+		b.tic();
+		for ( i = 0; i < b.iterations; i++ ) {
+			quaternary2d( arrays, shape, add );
+			i1 = i % shape[ 0 ];
+			i0 = i % shape[ 1 ];
+			if ( isnan( arrays[ 4 ][ i1 ][ i0 ] ) ) {
+				b.fail( 'should not return NaN' );
+			}
+		}
+		b.toc();
+
+		i1 = i % shape[ 0 ];
+		i0 = i % shape[ 1 ];
+		if ( isnan( arrays[ 4 ][ 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 ), 1.0/2.0 ) );
+		sh = [ N, N ];
+		f = createBenchmark( sh );
+		bench( pkg+'::square_matrix:size='+numel( sh ), f );
+	}
+}
+
+main();

base/quaternary2d/docs/repl.txt

@@ -0,0 +1,34 @@
+
+{{alias}}( arrays, shape, fcn )
+    Applies a quaternary callback to elements in four two-dimensional nested
+    input arrays and assigns results to elements in a two-dimensional nested
+    output array.
+
+    Parameters
+    ----------
+    arrays: ArrayLikeObject
+        Array-like object containing four input nested arrays and one output
+        nested array.
+
+    shape: Array<integer>
+        Array shape.
+
+    fcn: Function
+        Ternary callback.
+
+    Examples
+    --------
+    > function fcn( x, y, z, w ) { return x + y + z + w; };
+    > var x = [ [ 1.0, 2.0 ], [ 3.0, 4.0 ] ];
+    > var y = [ [ 1.0, 2.0 ], [ 3.0, 4.0 ] ];
+    > var z = [ [ 1.0, 2.0 ], [ 3.0, 4.0 ] ];
+    > var w = [ [ 1.0, 2.0 ], [ 3.0, 4.0 ] ];
+    > var out = [ [ 0.0, 0.0 ], [ 0.0, 0.0 ] ];
+    > var shape = [ 2, 2 ];
+    > {{alias}}( [ x, y, z, w, out ], shape, fcn );
+    > out
+    [ [ 4.0, 8.0 ], [ 12.0, 16.0 ] ]
+
+    See Also
+    --------
+

base/quaternary2d/docs/types/index.d.ts

@@ -0,0 +1,71 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2023 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.
+*/
+
+// TypeScript Version: 4.1
+
+/// <reference types="@stdlib/types"/>
+
+import { Array2D } from '@stdlib/types/array';
+import { Shape2D } from '@stdlib/types/ndarray';
+
+/**
+* Ternary callback.
+*
+* @param value - input value
+* @returns result
+*/
+type Ternary<T, U, V, W, X> = ( v1: T, v2: U, v3: V, v4: W ) => X;
+
+/**
+* Applies a quaternary callback to elements in four two-dimensional nested input arrays and assigns results to elements in a two-dimensional nested output array.
+*
+* ## Notes
+*
+* -   The function assumes that the input and output arrays have the same shape.
+*
+* @param arrays - array containing four input nested arrays and one output nested array
+* @param shape - array shape
+* @param fcn - quaternary callback
+*
+* @example
+* var ones2d = require( `@stdlib/array/base/ones2d` );
+* var zeros2d = require( `@stdlib/array/base/zeros2d` );
+*
+* function add( x, y, z, w ) {
+*     return x + y + z + w;
+* }
+*
+* var shape = [ 2, 2 ];
+*
+* var x = ones2d( shape );
+* var y = ones2d( shape );
+* var z = ones2d( shape );
+* var w = ones2d( shape );
+* var out = zeros2d( shape );
+*
+* quaternary2d( [ x, y, z, w, out ], shape, add );
+*
+* console.log( out );
+* // => [ [ 4.0, 4.0 ], [ 4.0, 4.0 ] ]
+*/
+declare function quaternary2d<T = unknown, U = unknown, V = unknown, W = unknown, X = unknown>( arrays: [ Array2D<T>, Array2D<U>, Array2D<V>, Array2D<W>, Array2D<X> ], shape: Shape2D, fcn: Ternary<T, U, V, W, X> ): void;
+
+
+// EXPORTS //
+
+export = quaternary2d;