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Return a one-dimensional ndarray formed by concatenating provided input arguments.
To use in Observable,
concat1d = require( 'https://cdn.jsdelivr.net/gh/stdlib-js/ndarray-concat1d@umd/browser.js' )To vendor stdlib functionality and avoid installing dependency trees for Node.js, you can use the UMD server build:
var concat1d = require( 'path/to/vendor/umd/ndarray-concat1d/index.js' )To include the bundle in a webpage,
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/ndarray-concat1d@umd/browser.js"></script>If no recognized module system is present, access bundle contents via the global scope:
<script type="text/javascript">
(function () {
window.concat1d;
})();
</script>Returns a one-dimensional ndarray formed by concatenating provided input arguments.
var array = require( '@stdlib/ndarray-array' );
var ndarray2array = require( '@stdlib/ndarray-to-array' );
var x = array( [ -1.0, 2.0, 3.0, 4.0 ] );
var y = array( [ -5.0, 6.0, -7.0, -8.0, 9.0, -10.0 ] );
var out = concat1d( x, y );
// returns <ndarray>
var arr = ndarray2array( out );
// returns [ -1.0, 2.0, 3.0, 4.0, -5.0, 6.0, -7.0, -8.0, 9.0, -10.0 ]The function accepts the following arguments:
- ...arrays: inputs to concatenate. May be passed as separate arguments or an array of arguments. Each argument must either be a one-dimensional ndarray, a zero-dimensional ndarray, or a scalar value.
The data type of the output ndarray is determined by applying type promotion rules. If provided ndarrays having different memory layouts or only scalar inputs, the output ndarray has the default memory layout.
Concatenates provided input arguments and assigns the result to a provided one-dimensional output ndarray.
var array = require( '@stdlib/ndarray-array' );
var zeros = require( '@stdlib/ndarray-zeros' );
var ndarray2array = require( '@stdlib/ndarray-to-array' );
var x = array( [ -1.0, 2.0, 3.0, 4.0 ] );
var y = array( [ -5.0, 6.0, -7.0, -8.0 ] );
var z = zeros( [ 8 ] );
var out = concat1d.assign( x, y, z );
// returns <ndarray>
var bool = ( out === z );
// returns true
var arr = ndarray2array( z );
// returns [ -1.0, 2.0, 3.0, 4.0, -5.0, 6.0, -7.0, -8.0 ]The function accepts the following arguments:
<!DOCTYPE html>
<html lang="en">
<body>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/random-array-discrete-uniform@umd/browser.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/ndarray-array@umd/browser.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/ndarray-to-array@umd/browser.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/ndarray-concat1d@umd/browser.js"></script>
<script type="text/javascript">
(function () {
var opts = {
'dtype': 'generic'
};
var x = array( discreteUniform( 6, 0, 10, opts ), opts );
console.log( ndarray2array( x ) );
var y = array( discreteUniform( 8, 0, 10, opts ), opts );
console.log( ndarray2array( y ) );
var out = concat1d( x, y );
console.log( ndarray2array( out ) );
})();
</script>
</body>
</html>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.
See LICENSE.
Copyright © 2016-2025. The Stdlib Authors.
