@stdlib/stats-base-dists-chisquare-median
v0.2.2
Published
Chi-squared distribution median.
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Median
Chi-squared distribution median.
Installation
npm install @stdlib/stats-base-dists-chisquare-median
Usage
var median = require( '@stdlib/stats-base-dists-chisquare-median' );
median( k )
Returns the median of a chi-squared distribution with degrees of freedom k
.
var v = median( 9.0 );
// returns ~8.343
v = median( 2.0 );
// returns ~1.386
If provided k < 0
, the function returns NaN
.
var y = median( -1.0 );
// returns NaN
Examples
var randu = require( '@stdlib/random-base-randu' );
var round = require( '@stdlib/math-base-special-round' );
var median = require( '@stdlib/stats-base-dists-chisquare-median' );
var k;
var y;
var i;
for ( i = 0; i < 10; i++ ) {
k = randu() * 20.0;
y = median( k );
console.log( 'k: %d, Median(X,k): %d', k.toFixed( 4 ), y.toFixed( 4 ) );
}
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
Copyright © 2016-2024. The Stdlib Authors.