@stdlib/stats-base-dists-chisquare
v0.2.2
Published
Chi-squared distribution.
Downloads
3,494
Readme
Chi-squared
Chi-squared distribution.
Installation
npm install @stdlib/stats-base-dists-chisquare
Usage
var chisquare = require( '@stdlib/stats-base-dists-chisquare' );
chisquare
Chi-squared distribution.
var dist = chisquare;
// returns {...}
The namespace contains the following distribution functions:
cdf( x, k )
: Chi-squared distribution cumulative distribution function.logpdf( x, k )
: evaluate the natural logarithm of the probability density function (PDF) for a chi-squared distribution.mgf( t, k )
: Chi-squared distribution moment-generating function (MGF).pdf( x, k )
: Chi-squared distribution probability density function (PDF).quantile( p, k )
: Chi-squared distribution quantile function.
The namespace contains the following functions for calculating distribution properties:
entropy( k )
: Chi-squared distribution differential entropy.kurtosis( k )
: Chi-squared distribution excess kurtosis.mean( k )
: Chi-squared distribution expected value.median( k )
: Chi-squared distribution median.mode( k )
: Chi-squared distribution mode.skewness( k )
: Chi-squared distribution skewness.stdev( k )
: Chi-squared distribution standard deviation.variance( k )
: Chi-squared distribution variance.
The namespace contains a constructor function for creating a Chi-squared distribution object.
ChiSquare( [k] )
: Chi-squared distribution constructor.
var ChiSquare = require( '@stdlib/stats-base-dists-chisquare' ).ChiSquare;
var dist = new ChiSquare( 4.0 );
var mu = dist.mean;
// returns 4.0
Examples
var objectKeys = require( '@stdlib/utils-keys' );
var chisquare = require( '@stdlib/stats-base-dists-chisquare' );
console.log( objectKeys( chisquare ) );
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.