@stdlib/stats-base-dists-laplace NPM

Laplace

Laplace distribution.

Installation

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

Usage

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

laplace

Laplace distribution.

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

The namespace contains the following distribution functions:

cdf( x, mu, b ): Laplace distribution cumulative distribution function.
logcdf( x, mu, b ): Laplace distribution logarithm of cumulative distribution function.
logpdf( x, mu, b ): Laplace distribution logarithm of probability density function (PDF).
mgf( t, mu, b ): Laplace distribution moment-generating function (MGF).
pdf( x, mu, b ): Laplace distribution probability density function (PDF).
quantile( p, mu, b ): Laplace distribution quantile function.

The namespace contains the following functions for calculating distribution properties:

entropy( mu, b ): Laplace distribution differential entropy.
kurtosis( mu, b ): Laplace distribution excess kurtosis.
mean( mu, b ): Laplace distribution expected value.
median( mu, b ): Laplace distribution median.
mode( mu, b ): Laplace distribution mode.
skewness( mu, b ): Laplace distribution skewness.
stdev( mu, b ): Laplace distribution standard deviation.
variance( mu, b ): Laplace distribution variance.

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

Laplace( [mu, b] ): Laplace distribution constructor.

var Laplace = require( '@stdlib/stats-base-dists-laplace' ).Laplace;

var dist = new Laplace( 2.0, 4.0 );

var y = dist.cdf( 0.5 );
// returns ~0.344

Examples

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

console.log( objectKeys( laplace ) );

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.