@stdlib/array-base-broadcasted-binary2d
v0.2.2
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Apply a binary callback to elements in two broadcasted input arrays and assign results to elements in a two-dimensional nested output array.
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bbinary2d
Apply a binary callback to elements in two broadcasted nested input arrays and assign results to elements in a two-dimensional nested output array.
Installation
npm install @stdlib/array-base-broadcasted-binary2d
Usage
var bbinary2d = require( '@stdlib/array-base-broadcasted-binary2d' );
bbinary2d( arrays, shapes, fcn )
Applies a binary callback to elements in two broadcasted nested input arrays and assigns results to elements in a two-dimensional nested output array.
var zeros2d = require( '@stdlib/array-base-zeros2d' );
var add = require( '@stdlib/math-base-ops-add' );
var x = [ [ 1.0, 2.0 ] ];
var y = [ [ 3.0 ], [ 4.0 ] ];
var z = zeros2d( [ 2, 2 ] );
var shapes = [
[ 1, 2 ],
[ 2, 1 ],
[ 2, 2 ]
];
bbinary2d( [ x, y, z ], shapes, add );
// z => [ [ 4.0, 5.0 ], [ 5.0, 6.0 ] ]
The function accepts the following arguments:
- arrays: array-like object containing two input nested arrays and one output nested array.
- shapes: array shapes.
- fcn: binary function to apply.
Notes
- The input and output array shapes must be broadcast compatible.
Examples
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 add = require( '@stdlib/math-base-ops-add' );
var bbinary2d = require( '@stdlib/array-base-broadcasted-binary2d' );
var shapes = [
[ 1, 3 ],
[ 3, 1 ],
[ 3, 3 ]
];
var x = filled2dBy( shapes[ 0 ], discreteUniform( -100, 100 ) );
console.log( x );
var y = filled2dBy( shapes[ 1 ], discreteUniform( -100, 100 ) );
console.log( y );
var z = zeros2d( shapes[ 2 ] );
console.log( z );
bbinary2d( [ x, y, z ], shapes, add );
console.log( z );
Notice
This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.
Community
License
See LICENSE.
Copyright
Copyright © 2016-2024. The Stdlib Authors.