All files / ndarray/base/unary-by/lib index.js

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/**
* @license Apache-2.0
*
* Copyright (c) 2022 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';
 
/**
* Apply a unary function to each element retrieved from an input ndarray according to a callback function and assign results to elements in an output ndarray.
*
* @module @stdlib/ndarray/base/unary-by
*
* @example
* var Float64Array = require( '@stdlib/array/float64' );
* var unaryBy = require( '@stdlib/ndarray/base/unary-by' );
*
* function scale( x ) {
*     return x * 10.0;
* }
*
* function accessor( v ) {
*     return v * 2.0;
* }
*
* // Create data buffers:
* var xbuf = new Float64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0 ] );
* var ybuf = new Float64Array( 6 );
*
* // Define the shape of the input and output arrays:
* var shape = [ 3, 1, 2 ];
*
* // Define the array strides:
* var sx = [ 4, 4, 1 ];
* var sy = [ 2, 2, 1 ];
*
* // Define the index offsets:
* var ox = 1;
* var oy = 0;
*
* // Create the input and output ndarray-like objects:
* var x = {
*     'dtype': 'float64',
*     'data': xbuf,
*     'shape': shape,
*     'strides': sx,
*     'offset': ox,
*     'order': 'row-major'
* };
* var y = {
*     'dtype': 'float64',
*     'data': ybuf,
*     'shape': shape,
*     'strides': sy,
*     'offset': oy,
*     'order': 'row-major'
* };
*
* // Apply the unary function:
* unaryBy( [ x, y ], scale, accessor );
*
* console.log( y.data );
* // => <Float64Array>[ 40.0, 60.0, 120.0, 140.0, 200.0, 220.0 ]
*/
 
// MODULES //
 
var main = require( './main.js' );
 
 
// EXPORTS //
 
module.exports = main;