time-to-botec/squiggle/node_modules/@stdlib/stats/base/dists/normal

Normal

Normal distribution.

Usage

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

normal

Normal distribution.

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

The namespace contains the following distribution functions:

• cdf( x, mu, sigma ): normal distribution cumulative distribution function.
• logpdf( x, mu, sigma ): evaluate the natural logarithm of the probability density function (PDF) for a normal distribution.
• mgf( t, mu, sigma ): normal distribution moment-generating function (MGF).
• pdf( x, mu, sigma ): normal distribution probability density function (PDF).
• quantile( p, mu, sigma ): normal distribution quantile function.

The namespace contains the following functions for calculating distribution properties:

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

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

• Normal( [mu, sigma] ): normal distribution constructor.

var Normal = require( '@stdlib/stats/base/dists/normal' ).Normal;

var dist = new Normal( 2.0, 4.0 );

var y = dist.pdf( 2.0 );
// returns ~0.1

Examples

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

console.log( objectKeys( normal ) );