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38 changes: 20 additions & 18 deletions lib/node_modules/@stdlib/stats/base/nanrange-by/README.md
Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@

@license Apache-2.0

Copyright (c) 2020 The Stdlib Authors.
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.
Expand Down Expand Up @@ -38,7 +38,7 @@ The [**range**][range] is defined as the difference between the maximum and mini
var nanrangeBy = require( '@stdlib/stats/base/nanrange-by' );
```

#### nanrangeBy( N, x, stride, clbk\[, thisArg] )
#### nanrangeBy( N, x, strideX, clbk\[, thisArg] )

Calculates the [range][range] of strided array `x` via a callback function, ignoring `NaN` values.

Expand All @@ -56,7 +56,7 @@ var v = nanrangeBy( x.length, x, 1, accessor );
The function has the following parameters:

- **N**: number of indexed elements.
- **x**: input [`Array`][mdn-array], [`typed array`][mdn-typed-array], or an array-like object (excluding strings and functions).
- **x**: input [`Array`][mdn-array], [`typed array`][mdn-typed-array], or an array-like object (excluding strings and functions).
- **stride**: index increment.
- **clbk**: callback function.
- **thisArg**: execution context (_optional_).
Expand All @@ -65,7 +65,7 @@ The invoked callback is provided four arguments:

- **value**: array element.
- **aidx**: array index.
- **sidx**: strided index (`offset + aidx*stride`).
- **sidx**: strided index (`offsetX + aidx*strideX`).
- **array**: input array/collection.

To set the callback execution context, provide a `thisArg`.
Expand All @@ -89,7 +89,7 @@ var cnt = context.count;
// returns 10
```

The `N` and `stride` parameters determine which elements in `x` are accessed at runtime. For example, to access every other element
The `N` and `strideX` parameters determine which elements in `x` are accessed at runtime. For example, to access every other element

```javascript
var floor = require( '@stdlib/math/base/special/floor' );
Expand Down Expand Up @@ -127,7 +127,7 @@ var v = nanrangeBy( N, x1, 2, accessor );
// returns 8.0
```

#### nanrangeBy.ndarray( N, x, stride, offset, clbk\[, thisArg] )
#### nanrangeBy.ndarray( N, x, strideX, offsetX, clbk\[, thisArg] )

Calculates the [range][range] of strided array `x` via a callback function, ignoring `NaN` values and using alternative indexing semantics.

Expand All @@ -144,9 +144,9 @@ var v = nanrangeBy.ndarray( x.length, x, 1, 0, accessor );

The function has the following additional parameters:

- **offset**: starting index.
- **offsetX**: starting index.

While [`typed array`][mdn-typed-array] views mandate a view offset based on the underlying `buffer`, the `offset` parameter supports indexing semantics based on a starting index. For example, to access only the last three elements of `x`
While [`typed array`][mdn-typed-array] views mandate a view offset based on the underlying `buffer`, the `offsetX` parameter supports indexing semantics based on a starting index. For example, to access only the last three elements of `x`

```javascript
function accessor( v ) {
Expand All @@ -168,10 +168,11 @@ var v = nanrangeBy.ndarray( 3, x, 1, x.length-3, accessor );
## Notes

- If `N <= 0`, both functions return `NaN`.
- [@stdlib/array/base/accessor]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/array/base/accessor
- A provided callback function should return a numeric value.
- If a provided callback function returns `NaN`, the value is ignored.
- If a provided callback function does not return any value (or equivalently, explicitly returns `undefined`), the value is ignored.
- When possible, prefer using [`dnanrange`][@stdlib/stats/base/dnanrange], [`snanrange`][@stdlib/stats/base/snanrange], and/or [`nanrange`][@stdlib/stats/base/nanrange], as, depending on the environment, these interfaces are likely to be significantly more performant.
- When possible, prefer using [`dnanrange`][@stdlib/stats/strided/dnanrange], [`snanrange`][@stdlib/stats/strided/snanrange], and/or [`nanrange`][@stdlib/stats/base/nanrange], as, depending on the environment, these interfaces are likely to be significantly more performant.

</section>

Expand All @@ -185,22 +186,23 @@ var v = nanrangeBy.ndarray( 3, x, 1, x.length-3, accessor );

```javascript
var discreteUniform = require( '@stdlib/random/base/discrete-uniform' );
var randu = require( '@stdlib/random/base/randu' );
var uniform = require( '@stdlib/random/base/uniform' );
var filledarrayBy = require( '@stdlib/array/filled-by' );
var bernoulli = require( '@stdlib/random/base/bernoulli' );
var nanrangeBy = require( '@stdlib/stats/base/nanrange-by' );

function fill() {
if ( randu() < 0.2 ) {
function rand() {
if ( bernoulli( 0.8 ) < 1 ) {
return NaN;
}
return discreteUniform( -50, 50 );
return uniform( -50.0, 50.0 );
}

function accessor( v ) {
return v * 2.0;
}

var x = filledarrayBy( 10, 'float64', fill );
var x = filledarrayBy( 10, 'float64', rand );
console.log( x );

var v = nanrangeBy( x.length, x, 1, accessor );
Expand All @@ -219,12 +221,12 @@ console.log( v );

## See Also

- <span class="package-name">[`@stdlib/stats/base/dnanrange`][@stdlib/stats/base/dnanrange]</span><span class="delimiter">: </span><span class="description">calculate the range of a double-precision floating-point strided array, ignoring NaN values.</span>
- <span class="package-name">[`@stdlib/stats/strided/dnanrange`][@stdlib/stats/strided/dnanrange]</span><span class="delimiter">: </span><span class="description">calculate the range of a double-precision floating-point strided array, ignoring NaN values.</span>
- <span class="package-name">[`@stdlib/stats/base/nanmax-by`][@stdlib/stats/base/nanmax-by]</span><span class="delimiter">: </span><span class="description">calculate the maximum value of a strided array via a callback function, ignoring NaN values.</span>
- <span class="package-name">[`@stdlib/stats/base/nanmin-by`][@stdlib/stats/base/nanmin-by]</span><span class="delimiter">: </span><span class="description">calculate the minimum value of a strided array via a callback function, ignoring NaN values.</span>
- <span class="package-name">[`@stdlib/stats/base/nanrange`][@stdlib/stats/base/nanrange]</span><span class="delimiter">: </span><span class="description">calculate the range of a strided array, ignoring NaN values.</span>
- <span class="package-name">[`@stdlib/stats/base/range-by`][@stdlib/stats/base/range-by]</span><span class="delimiter">: </span><span class="description">calculate the range of a strided array via a callback function.</span>
- <span class="package-name">[`@stdlib/stats/base/snanrange`][@stdlib/stats/base/snanrange]</span><span class="delimiter">: </span><span class="description">calculate the range of a single-precision floating-point strided array, ignoring NaN values.</span>
- <span class="package-name">[`@stdlib/stats/strided/snanrange`][@stdlib/stats/strided/snanrange]</span><span class="delimiter">: </span><span class="description">calculate the range of a single-precision floating-point strided array, ignoring NaN values.</span>

</section>

Expand All @@ -242,7 +244,7 @@ console.log( v );

<!-- <related-links> -->

[@stdlib/stats/base/dnanrange]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/base/dnanrange
[@stdlib/stats/strided/dnanrange]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/strided/dnanrange

[@stdlib/stats/base/nanmax-by]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/base/nanmax-by

Expand All @@ -252,7 +254,7 @@ console.log( v );

[@stdlib/stats/base/range-by]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/base/range-by

[@stdlib/stats/base/snanrange]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/base/snanrange
[@stdlib/stats/strided/snanrange]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/strided/snanrange

<!-- </related-links> -->

Expand Down
Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
/**
* @license Apache-2.0
*
* Copyright (c) 2020 The Stdlib Authors.
* 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.
Expand All @@ -21,7 +21,9 @@
// MODULES //

var bench = require( '@stdlib/bench' );
var randu = require( '@stdlib/random/base/randu' );
var uniform = require( '@stdlib/random/base/uniform' );
var filledarrayBy = require( '@stdlib/array/filled-by' );
var bernoulli = require( '@stdlib/random/base/bernoulli' );
var isnan = require( '@stdlib/math/base/assert/is-nan' );
var pow = require( '@stdlib/math/base/special/pow' );
var pkg = require( './../package.json' ).name;
Expand All @@ -37,6 +39,13 @@ var nanrangeBy = require( './../lib/nanrange_by.js' );
* @param {number} value - array element
* @returns {number} accessed value
*/
function rand() {
if ( bernoulli( 0.8 ) < 1 ) {
return NaN;
}
return uniform( -50.0, 50.0 );
}

function accessor( value ) {
return value * 2.0;
}
Expand All @@ -49,17 +58,7 @@ function accessor( value ) {
* @returns {Function} benchmark function
*/
function createBenchmark( len ) {
var x;
var i;

x = [];
for ( i = 0; i < len; i++ ) {
if ( randu() < 0.2 ) {
x.push( NaN );
} else {
x.push( ( randu()*20.0 ) - 10.0 );
}
}
var x = filledarrayBy( len, "float64", rand );
return benchmark;

function benchmark( b ) {
Expand Down
Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
/**
* @license Apache-2.0
*
* Copyright (c) 2020 The Stdlib Authors.
* 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.
Expand All @@ -21,7 +21,9 @@
// MODULES //

var bench = require( '@stdlib/bench' );
var randu = require( '@stdlib/random/base/randu' );
var uniform = require( '@stdlib/random/base/uniform' );
var filledarrayBy = require( '@stdlib/array/filled-by' );
var bernoulli = require( '@stdlib/random/base/bernoulli' );
var isnan = require( '@stdlib/math/base/assert/is-nan' );
var pow = require( '@stdlib/math/base/special/pow' );
var pkg = require( './../package.json' ).name;
Expand All @@ -37,6 +39,13 @@ var nanrangeBy = require( './../lib/ndarray.js' );
* @param {number} value - array element
* @returns {number} accessed value
*/
function rand() {
if ( bernoulli( 0.8 ) < 1 ) {
return NaN;
}
return uniform( -50.0, 50.0 );
}

function accessor( value ) {
return value * 2.0;
}
Expand All @@ -49,17 +58,7 @@ function accessor( value ) {
* @returns {Function} benchmark function
*/
function createBenchmark( len ) {
var x;
var i;

x = [];
for ( i = 0; i < len; i++ ) {
if ( randu() < 0.2 ) {
x.push( NaN );
} else {
x.push( ( randu()*20.0 ) - 10.0 );
}
}
var x = filledarrayBy( len, "float64", rand );
return benchmark;

function benchmark( b ) {
Expand Down
18 changes: 9 additions & 9 deletions lib/node_modules/@stdlib/stats/base/nanrange-by/docs/repl.txt
Original file line number Diff line number Diff line change
@@ -1,9 +1,9 @@

{{alias}}( N, x, stride, clbk[, thisArg] )
{{alias}}( N, x, strideX, clbk[, thisArg] )
Calculates the range of a strided array via a callback function, ignoring
`NaN` values.

The `N` and `stride` parameters determine which elements in `x` are accessed
The `N` and `strideX` parameters determine which elements in `x` are accessed
at runtime.

Indexing is relative to the first index. To introduce an offset, use typed
Expand All @@ -15,7 +15,7 @@

- value: array element.
- aidx: array index.
- sidx: strided index (offset + aidx*stride).
- sidx: strided index (offsetX + aidx*strideX).
- array: the input array.

The callback function should return a numeric value.
Expand All @@ -34,7 +34,7 @@
Input array/collection. If provided an object, the object must be array-
like (excluding strings and functions).

stride: integer
strideX: integer
Index increment for `x`.

clbk: Function
Expand All @@ -56,7 +56,7 @@
> {{alias}}( x.length, x, 1, accessor )
18.0

// Using `N` and `stride` parameters:
// Using `N` and `strideX` parameters:
> x = [ -2.0, 1.0, 3.0, -5.0, 4.0, -1.0, -3.0, 1.0 ];
> var N = {{alias:@stdlib/math/base/special/floor}}( x.length / 2 );
> {{alias}}( N, x, 2, accessor )
Expand All @@ -69,12 +69,12 @@
> {{alias}}( N, x1, 2, accessor )
8.0

{{alias}}.ndarray( N, x, stride, offset, clbk[, thisArg] )
{{alias}}.ndarray( N, x, strideX, offsetX, clbk[, thisArg] )
Calculates the range of a strided array via a callback function, ignoring
`NaN` values and using alternative indexing semantics.

While typed array views mandate a view offset based on the underlying
buffer, the `offset` parameter supports indexing semantics based on a
buffer, the `offsetX` parameter supports indexing semantics based on a
starting index.

Parameters
Expand All @@ -86,10 +86,10 @@
Input array/collection. If provided an object, the object must be array-
like (excluding strings and functions).

stride: integer
strideX: integer
Index increment for `x`.

offset: integer
offsetX: integer
Starting index of `x`.

clbk: Function
Expand Down
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