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110 changes: 110 additions & 0 deletions lib/node_modules/@stdlib/stats/array/range/README.md
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@@ -0,0 +1,110 @@
<!--

@license Apache-2.0

Copyright (c) 2025 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.

-->

# range

> Calculate the [range][range] of an array.

<section class="intro">

</section>

<!-- /.intro -->

<section class="usage">

## Usage

```javascript
var range = require( '@stdlib/stats/array/range' );
```

#### range( x )

Computes the [range][range] of an array.

```javascript
var x = [ 1.0, -2.0, 2.0 ];

var v = range( x );
// returns 4.0
```

The function has the following parameters:

- **x**: input array.

</section>

<!-- /.usage -->

<section class="notes">

## Notes

- If provided an empty array, the function returns `NaN`.
- The function supports array-like objects having getter and setter accessors for array element access (e.g., [`@stdlib/array/base/accessor`][@stdlib/array/base/accessor]).

</section>

<!-- /.notes -->

<section class="examples">

## Examples

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

```javascript
var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
var range = require( '@stdlib/stats/array/range' );

var x = discreteUniform( 10, -50, 50, {
'dtype': 'float64'
});
console.log( x );

var v = range( x );
console.log( v );
```

</section>

<!-- /.examples -->

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

<section class="related">

</section>

<!-- /.related -->

<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="links">

[range]: https://en.wikipedia.org/wiki/Range_%28statistics%29

[@stdlib/array/base/accessor]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/array/base/accessor

</section>

<!-- /.links -->
96 changes: 96 additions & 0 deletions lib/node_modules/@stdlib/stats/array/range/benchmark/benchmark.js
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/**
* @license Apache-2.0
*
* Copyright (c) 2025 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';

// MODULES //

var bench = require( '@stdlib/bench' );
var uniform = require( '@stdlib/random/array/uniform' );
var isnan = require( '@stdlib/math/base/assert/is-nan' );
var pow = require( '@stdlib/math/base/special/pow' );
var pkg = require( './../package.json' ).name;
var range = require( './../lib' );


// VARIABLES //

var options = {
'dtype': 'generic'
};


// FUNCTIONS //

/**
* Creates a benchmark function.
*
* @private
* @param {PositiveInteger} len - array length
* @returns {Function} benchmark function
*/
function createBenchmark( len ) {
var x = uniform( len, -10, 10, options );
return benchmark;

function benchmark( b ) {
var v;
var i;

b.tic();
for ( i = 0; i < b.iterations; i++ ) {
v = range( x );
if ( isnan( v ) ) {
b.fail( 'should not return NaN' );
}
}
b.toc();
if ( isnan( v ) ) {
b.fail( 'should not return NaN' );
}
b.pass( 'benchmark finished' );
b.end();
}
}


// MAIN //

/**
* Main execution sequence.
*
* @private
*/
function main() {
var len;
var min;
var max;
var f;
var i;

min = 1; // 10^min
max = 6; // 10^max

for ( i = min; i <= max; i++ ) {
len = pow( 10, i );
f = createBenchmark( len );
bench( pkg+':len='+len, f );
}
}

main();
25 changes: 25 additions & 0 deletions lib/node_modules/@stdlib/stats/array/range/docs/repl.txt
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{{alias}}( x )
Computes the range of an array.

If provided an empty array, the function returns `NaN`.

Parameters
----------
x: Array<number>|TypedArray
Input array.

Returns
-------
out: number
Range.

Examples
--------
> var x = [ 1.0, -2.0, 2.0 ];
> {{alias}}( x )
4.0

See Also
--------

47 changes: 47 additions & 0 deletions lib/node_modules/@stdlib/stats/array/range/docs/types/index.d.ts
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/*
* @license Apache-2.0
*
* Copyright (c) 2025 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.
*/

// TypeScript Version: 4.1

/// <reference types="@stdlib/types"/>

import { NumericArray, Collection, AccessorArrayLike } from '@stdlib/types/array';

/**
* Input array.
*/
type InputArray = NumericArray | Collection<number> | AccessorArrayLike<number>;

/**
* Computes the range of an array.
*
* @param x - input array
* @returns range
*
* @example
* var x = [ 1.0, -2.0, 2.0 ];
*
* var v = range( x );
* // returns 4.0
*/
declare function range( x: InputArray ): number;


// EXPORTS //

export = range;
51 changes: 51 additions & 0 deletions lib/node_modules/@stdlib/stats/array/range/docs/types/test.ts
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/*
* @license Apache-2.0
*
* Copyright (c) 2025 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.
*/

import AccessorArray = require( '@stdlib/array/base/accessor' );
import range = require( './index' );


// TESTS //

// The function returns a number...
{
const x = new Float64Array( 10 );

range( x ); // $ExpectType number
range( new AccessorArray( x ) ); // $ExpectType number
}

// The compiler throws an error if the function is provided a first argument which is not a numeric array...
{
range( 10 ); // $ExpectError
range( '10' ); // $ExpectError
range( true ); // $ExpectError
range( false ); // $ExpectError
range( null ); // $ExpectError
range( undefined ); // $ExpectError
range( {} ); // $ExpectError
range( ( x: number ): number => x ); // $ExpectError
}

// The compiler throws an error if the function is provided an unsupported number of arguments...
{
const x = new Float64Array( 10 );

range(); // $ExpectError
range( x, {} ); // $ExpectError
}
30 changes: 30 additions & 0 deletions lib/node_modules/@stdlib/stats/array/range/examples/index.js
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/**
* @license Apache-2.0
*
* Copyright (c) 2025 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';

var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
var range = require( './../lib' );

var x = discreteUniform( 10, -50, 50, {
'dtype': 'float64'
});
console.log( x );

var v = range( x );
console.log( v );
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