time-to-botec/squiggle/node_modules/@stdlib/stats/base/dists/laplace/README.md

Laplace

Laplace distribution.

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 ) );