Package Exports

@stdlib/array-base-one-to
@stdlib/array-base-one-to/dist
@stdlib/array-base-one-to/dist/index.js
@stdlib/array-base-one-to/lib/index.js

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Readme

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oneTo

Generate a linearly spaced numeric array whose elements increment by 1 starting from one.

Installation

npm install @stdlib/array-base-one-to

Usage

var oneTo = require( '@stdlib/array-base-one-to' );

oneTo( n )

Generates a linearly spaced numeric array whose elements increment by 1 starting from one.

var arr = oneTo( 6 );
// returns [ 1, 2, 3, 4, 5, 6 ]

If n <= 0, the function returns an empty array.

var arr = oneTo( 0 );
// returns []

arr = oneTo( -1 );
// returns []

If n is a non-integer value greater than zero, the function returns an array having ceil(n) elements.

var arr = oneTo( 5.1 );
// returns [ 1, 2, 3, 4, 5, 6 ]

oneTo.assign( out, stride, offset )

Fills an array with linearly spaced numeric elements which increment by 1 starting from one.

var out = [ 0, 0, 0, 0, 0, 0 ];

var arr = oneTo.assign( out, -1, out.length-1 );
// returns [ 6, 5, 4, 3, 2, 1 ]

var bool = ( arr === out );
// returns true

Examples

var sort2hp = require( '@stdlib/blas-ext-base-gsort2hp' );
var filledBy = require( '@stdlib/array-base-filled-by' );
var randu = require( '@stdlib/random-base-randu' );
var oneTo = require( '@stdlib/array-base-one-to' );

// Generate an array of random numbers:
var x = filledBy( 10, randu );

// Generate a linearly-spaced array:
var y = oneTo( x.length );

// Create a temporary array to avoid mutation:
var tmp = x.slice();

// Sort `y` according to the sort order of `x`:
sort2hp( x.length, 1, tmp, 1, y, 1 );

console.log( x );
console.log( y );

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.

@stdlib/array-base-one-to