Geometric

Geometric distribution.

Installation

npm install @stdlib/stats-base-dists-geometric

Usage

var geometric = require( '@stdlib/stats-base-dists-geometric' );

geometric

Geometric distribution.

var dist = geometric;
// returns {...}

The namespace contains the following distribution functions:

• cdf( x, p ): geometric distribution cumulative distribution function.
• logcdf( x, p ): geometric distribution logarithm of cumulative distribution function.
• logpmf( x, p ): geometric distribution logarithm of probability mass function (PMF).
• mgf( t, p ): geometric distribution moment-generating function (MGF).
• pmf( x, p ): geometric distribution probability mass function (PMF).
• quantile( r, p ): geometric distribution quantile function.

The namespace contains the following functions for calculating distribution properties:

• entropy( p ): geometric distribution entropy.
• kurtosis( p ): geometric distribution excess kurtosis.
• mean( p ): geometric distribution expected value.
• median( p ): geometric distribution median.
• mode( p ): geometric distribution mode.
• skewness( p ): geometric distribution skewness.
• stdev( p ): geometric distribution standard deviation.
• variance( p ): geometric distribution variance.

The namespace contains a constructor function for creating a geometric distribution object.

• Geometric( [p] ): geometric distribution constructor.

var Geometric = require( '@stdlib/stats-base-dists-geometric' ).Geometric;

var dist = new Geometric( 0.2 );

var y = dist.logpmf( 3.0 );
// returns ~-2.279

y = dist.logpmf( 2.3 );
// returns -Infinity

Examples

var objectKeys = require( '@stdlib/utils-keys' );
var geometric = require( '@stdlib/stats-base-dists-geometric' );

console.log( objectKeys( geometric ) );

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.