bunary4d

Apply a unary callback to elements in a broadcasted nested input array and assign results to elements in a four-dimensional nested output array.

Usage

var bunary4d = require( '@stdlib/array/base/broadcasted-unary4d' );

bunary4d( arrays, shapes, fcn )

Applies a unary callback to elements in a broadcasted nested input array and assigns results to elements in a four-dimensional nested output array.

var zeros4d = require( '@stdlib/array/base/zeros4d' );
var abs = require( '@stdlib/math/base/special/abs' );

var x = [ [ [ [ -1.0, -2.0 ] ] ] ];
var y = zeros4d( [ 1, 1, 2, 2 ] );

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

// Compute the absolute values:
bunary4d( [ x, y ], shapes, abs );
// y => [ [ [ [ 1.0, 2.0 ], [ 1.0, 2.0 ] ] ] ]

The function accepts the following arguments:

arrays: array-like object containing one input nested array and one output nested array.
shapes: array shapes.
fcn: unary 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 filled4dBy = require( '@stdlib/array/base/filled4d-by' );
var zeros4d = require( '@stdlib/array/base/zeros4d' );
var abs = require( '@stdlib/math/base/special/abs' );
var bunary4d = require( '@stdlib/array/base/broadcasted-unary4d' );

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

var x = filled4dBy( shapes[ 0 ], discreteUniform( -100, 100 ) );
console.log( x );

var y = zeros4d( shapes[ 1 ] );
console.log( y );

bunary4d( [ x, y ], shapes, abs );
console.log( y );