Create an array filled with ones and having the same length and data type as a provided array.
APACHE-2.0 License
Create an array filled with ones and having the same length and data type as a provided array.
npm install @stdlib/array-ones-like
Alternatively,
script
tag without installation and bundlers, use the ES Module available on the esm
branch (see README).deno
branch (see README for usage intructions).umd
branch (see README).The branches.md file summarizes the available branches and displays a diagram illustrating their relationships.
To view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.
var onesLike = require( '@stdlib/array-ones-like' );
Creates an array filled with ones and having the same length and data type as a provided array x
.
var x = [ 1, 2, 3, 4, 5 ];
var arr = onesLike( x );
// returns [ 1, 1, 1, 1, 1 ]
The function supports the following data types:
float64
: double-precision floating-point numbers (IEEE 754)float32
: single-precision floating-point numbers (IEEE 754)complex128
: double-precision complex floating-point numberscomplex64
: single-precision complex floating-point numbersint32
: 32-bit two's complement signed integersuint32
: 32-bit unsigned integersint16
: 16-bit two's complement signed integersuint16
: 16-bit unsigned integersint8
: 8-bit two's complement signed integersuint8
: 8-bit unsigned integersuint8c
: 8-bit unsigned integers clamped to 0-255
generic
: generic JavaScript valuesBy default, the output array data type is inferred from the provided array x
. To return an array having a different data type, provide a dtype
argument.
var x = [ 0, 0 ];
var arr = onesLike( x, 'int32' );
// returns <Int32Array>[ 1, 1 ]
1
and an imaginary component equal to 0
.var dtypes = require( '@stdlib/array-dtypes' );
var zeros = require( '@stdlib/array-zeros' );
var onesLike = require( '@stdlib/array-ones-like' );
// Create a zero-filled array:
var x = zeros( 4, 'complex128' );
// Get a list of array data types:
var dt = dtypes();
// Generate filled arrays...
var y;
var i;
for ( i = 0; i < dt.length; i++ ) {
y = onesLike( x, dt[ i ] );
console.log( y );
}
@stdlib/array-full-like
: create a filled array having the same length and data type as a provided array.
@stdlib/array-nans-like
: create an array filled with NaNs and having the same length and data type as a provided array.
@stdlib/array-ones
: create an array filled with ones and having a specified length.
@stdlib/array-zeros-like
: create a zero-filled array having the same length and data type as a provided array.
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.
See LICENSE.
Copyright © 2016-2024. The Stdlib Authors.