# Logistic > Logistic distribution.
## Usage ```javascript var logistic = require( '@stdlib/stats/base/dists/logistic' ); ``` #### logistic Logistic distribution. ```javascript var dist = logistic; // returns {...} ``` The namespace contains the following distribution functions:
- [`cdf( x, mu, s )`][@stdlib/stats/base/dists/logistic/cdf]: logistic distribution cumulative distribution function. - [`logcdf( x, mu, s )`][@stdlib/stats/base/dists/logistic/logcdf]: logistic distribution logarithm of cumulative distribution function. - [`logpdf( x, mu, s )`][@stdlib/stats/base/dists/logistic/logpdf]: logistic distribution logarithm of probability density function (PDF). - [`mgf( t, mu, s )`][@stdlib/stats/base/dists/logistic/mgf]: logistic distribution moment-generating function (MGF). - [`pdf( x, mu, s )`][@stdlib/stats/base/dists/logistic/pdf]: logistic distribution probability density function (PDF). - [`quantile( p, mu, s )`][@stdlib/stats/base/dists/logistic/quantile]: logistic distribution quantile function.
The namespace contains the following functions for calculating distribution properties:
- [`entropy( mu, s )`][@stdlib/stats/base/dists/logistic/entropy]: logistic distribution differential entropy. - [`kurtosis( mu, s )`][@stdlib/stats/base/dists/logistic/kurtosis]: logistic distribution excess kurtosis. - [`mean( mu, s )`][@stdlib/stats/base/dists/logistic/mean]: logistic distribution expected value. - [`median( mu, s )`][@stdlib/stats/base/dists/logistic/median]: logistic distribution median. - [`mode( mu, s )`][@stdlib/stats/base/dists/logistic/mode]: logistic distribution mode. - [`skewness( mu, s )`][@stdlib/stats/base/dists/logistic/skewness]: logistic distribution skewness. - [`stdev( mu, s )`][@stdlib/stats/base/dists/logistic/stdev]: logistic distribution standard deviation. - [`variance( mu, s )`][@stdlib/stats/base/dists/logistic/variance]: logistic distribution variance.
The namespace contains a constructor function for creating a [logistic][logistic-distribution] distribution object.
- [`Logistic( [mu, s] )`][@stdlib/stats/base/dists/logistic/ctor]: logistic distribution constructor.
```javascript var Logistic = require( '@stdlib/stats/base/dists/logistic' ).Logistic; var dist = new Logistic( 2.0, 4.0 ); var y = dist.pdf( 2.0 ); // returns 0.0625 ```
## Examples ```javascript var objectKeys = require( '@stdlib/utils/keys' ); var logistic = require( '@stdlib/stats/base/dists/logistic' ); console.log( objectKeys( logistic ) ); ```