npm package: @stdlib/array-base-unitspace
Description: Generate a linearly spaced numeric array whose elements increment by 1.
Author: The Stdlib Authors
Latest version: 0.2.3

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<details>
  <summary>
    About stdlib...
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  <p>We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.</p>
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# unitspace

[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] <!-- [![dependencies][dependencies-image]][dependencies-url] -->

> Generate a linearly spaced numeric array whose elements increment by 1.

<section class="installation">

## Installation

```bash
npm install @stdlib/array-base-unitspace
```

</section>

<section class="usage">

## Usage

```javascript
var unitspace = require( '@stdlib/array-base-unitspace' );
```

#### unitspace( start, stop )

Generates a linearly spaced numeric `array` whose elements increment by `1`.

```javascript
var arr = unitspace( 0, 6 );
// returns [ 0, 1, 2, 3, 4, 5 ]
```

</section>

<!-- /.usage -->

<section class="notes">

### Notes

-   The output `array` is guaranteed to include the `start` value but does **not** include the `stop` value. Beware that values subsequent to the `start` value are subject to floating-point errors. Hence,

    ```javascript
    var arr = unitspace( -0.7, 1 );
    // returns [ -0.7, ~0.3 ]
    ```

    where `arr[1]` is only guaranteed to be approximately equal to `0.3`.

    If you desire more control over element precision, consider using [roundn][@stdlib/math/base/special/roundn]:

    ```javascript
    var roundn = require( '@stdlib/math-base-special-roundn' );

    // Create an array subject to floating-point errors:
    var arr = unitspace( -10.7, 11.7 );

    // Round each value to the nearest hundredth:
    var i;
    for ( i = 0; i < arr.length; i++ ) {
        arr[ i ] = roundn( arr[ i ], -2 );
    }

    console.log( arr.join( '\n' ) );
    ```

</section>

<!-- /.notes -->

<section class="examples">

## Examples

<!-- eslint no-undef: "error" -->

```javascript
var sort2hp = require( '@stdlib/blas-ext-base-gsort2hp' );
var filledBy = require( '@stdlib/array-base-filled-by' );
var randu = require( '@stdlib/random-base-randu' );
var unitspace = require( '@stdlib/array-base-unitspace' );

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

// Generate an array of indices:
var idx = unitspace( 0, x.length );

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

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

console.log( x );
console.log( idx );
```

</section>

<!-- /.examples -->

<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->

<section class="related">

</section>

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<section class="main-repo" >

* * *

## Notice

This package is part of [stdlib][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][stdlib], see the main project [repository][stdlib].

#### Community

[![Chat][chat-image]][chat-url]

---

## License

See [LICENSE][stdlib-license].


## Copyright

Copyright &copy; 2016-2026. The Stdlib [Authors][stdlib-authors].

</section>

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[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/array-base-unitspace/main.svg
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[stdlib]: https://github.com/stdlib-js/stdlib

[stdlib-authors]: https://github.com/stdlib-js/stdlib/graphs/contributors

[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules

[deno-url]: https://github.com/stdlib-js/array-base-unitspace/tree/deno
[deno-readme]: https://github.com/stdlib-js/array-base-unitspace/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/array-base-unitspace/tree/umd
[umd-readme]: https://github.com/stdlib-js/array-base-unitspace/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/array-base-unitspace/tree/esm
[esm-readme]: https://github.com/stdlib-js/array-base-unitspace/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/array-base-unitspace/blob/main/branches.md

[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/array-base-unitspace/main/LICENSE

[@stdlib/math/base/special/roundn]: https://www.npmjs.com/package/@stdlib/math-base-special-roundn

</section>

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