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Gathering detailed insights and metrics for @stdlib/ndarray-base-strides2offset

@stdlib/ndarray-base-strides2offset - 0.2.2 | npmpackage.info

@stdlib/ndarray-base-strides2offset

Determine the index offset which specifies the location of the first indexed value in a multidimensional array based on a stride array.

0.2.2

Apache-2.0

29.57 kB

4.5

Installations

npm install @stdlib/ndarray-base-strides2offset

Developer Guide

BETA

Typescript

Yes

Module System

CommonJS

Min. Node Version

>=0.10.0

Node Version

16.20.2

NPM Version

8.19.4 Pull Requests

Open

0

Total

0

Closed

0

Issues

Open

0

Total

0

Closed

0

Releases

Unable to fetch releases

Languages

JavaScript

C (50.7%)

JavaScript (49.3%)

Developer

stdlib-js

Download Statistics

Total Downloads

Last Day

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GitHub Statistics

Apache-2.0 License

2 Stars

70 Commits

3 Watchers

5 Branches

14 Contributors

Updated on Jun 23, 2025

Sponsor this package

https://opencollective.com/stdlib

Maintainers

View All 14 Contributors

Package Meta Information

Latest Version

0.2.2

Package Id

@stdlib/ndarray-base-strides2offset@0.2.2

Unpacked Size

29.57 kB

Size

8.34 kB

File Count

NPM Version

8.19.4

Node Version

16.20.2

Published on

Jul 27, 2024

Total Downloads

Cumulative downloads

Total Downloads

NaN

Last Day

NaN

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NaN

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NaN

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Last Year

NaN

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About stdlib...

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.

The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.

When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.

To join us in bringing numerical computing to the web, get started by checking us out on GitHub, and please consider financially supporting stdlib. We greatly appreciate your continued support!

strides2offset

Determine the index offset which specifies the location of the first indexed value in a multidimensional array based on a stride array.

Installation

1npm install @stdlib/ndarray-base-strides2offset

Usage

1var strides2offset = require( '@stdlib/ndarray-base-strides2offset' );

strides2offset( shape, strides )

Returns the index offset which specifies the location of the first indexed value in a multidimensional array.

1var offset = strides2offset( [ 3, 2 ], [ 2, 1 ] );
2// returns 0
3
4offset = strides2offset( [ 3, 2 ], [ -2, 1 ] );
5// returns 4

Examples

1var discreteUniform = require( '@stdlib/random-base-discrete-uniform' );
2var shape2strides = require( '@stdlib/ndarray-base-shape2strides' );
3var numel = require( '@stdlib/ndarray-base-numel' );
4var randu = require( '@stdlib/random-base-randu' );
5var strides2offset = require( '@stdlib/ndarray-base-strides2offset' );
6
7var strides;
8var offset;
9var shape;
10var len;
11var arr;
12var i;
13var j;
14
15shape = [ 0, 0, 0 ];
16shape[ 0 ] = discreteUniform( 1, 10 );
17shape[ 1 ] = discreteUniform( 1, 10 );
18shape[ 2 ] = discreteUniform( 1, 10 );
19
20strides = shape2strides( shape, 'row-major' );
21len = numel( shape );
22
23arr = [];
24for ( i = 0; i < len; i++ ) {
25    arr.push( i );
26}
27for ( i = 0; i < 100; i++ ) {
28    j = discreteUniform( 0, shape.length-1 );
29    strides[ j ] *= ( randu() < 0.5 ) ? -1 : 1;
30    offset = strides2offset( shape, strides );
31    console.log( 'arr[0][0][0] = %d', arr[ offset ] );
32}

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.

Copyright

No vulnerabilities found.

10

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9

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3

Maintained

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3

Pinned-Dependencies

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Reason

dependency not pinned by hash detected -- score normalized to 3

Details

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Info: 33 out of 33 GitHub-owned GitHubAction dependencies pinned
Info: 19 out of 24 third-party GitHubAction dependencies pinned
Info: 0 out of 32 npmCommand dependencies pinned

0

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0

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0

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0

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0

SAST

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Score

4.5

/10

Last Scanned on 2025-06-30

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