laplace

The Laplace distribution, sometimes called the double exponential distribution, is an unbounded continuous distribution that has a very sharp central peak, located at theta. The distribution scales with phi.

The Laplace distribution can be used to describe the difference of two independent, and equally distributed, exponentials. It is also used in error analysis.

Sample

phi=1; theta=0

laplace(double phi, double theta)

Description

Generates a sample of the Laplace distribution.

Parameters

Name Type Description
phi double the scaling parameter
theta double the mode, or central peak position

Result

Type Description
double the generated sample

laplace(double phi, double theta, java.util.Random r)

Description

Generates a sample of the Laplace distribution using the specified random number generator.

Parameters

Name Type Description
phi double the scaling parameter
theta double the mode, or central peak position
r java.util.Random the random number generator

Result

Type Description
double the generated sample