org.jfree.data.function
Class NormalDistributionFunction2D

java.lang.Object
  org.jfree.data.function.NormalDistributionFunction2D

All Implemented Interfaces:

Function2D

public class NormalDistributionFunction2D
extends java.lang.Object
implements Function2D

A normal distribution function. See http://en.wikipedia.org/wiki/Normal_distribution.

Constructor Summary

NormalDistributionFunction2D(double mean, double std)
Constructs a new normal distribution function.

Method Summary

double	getMean() Returns the mean for the function.
double	getStandardDeviation() Returns the standard deviation for the function.
double	getValue(double x) Returns the function value.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NormalDistributionFunction2D

public NormalDistributionFunction2D(double mean,
                                    double std)

Constructs a new normal distribution function.

Parameters:

mean - the mean.

std - the standard deviation (> 0).

Method Detail

getMean

public double getMean()

Returns the mean for the function.

Returns:

The mean.

getStandardDeviation

public double getStandardDeviation()

Returns the standard deviation for the function.

Returns:

The standard deviation.

getValue

public double getValue(double x)

Returns the function value.

Specified by:

getValue in interface Function2D

Parameters:

x - the x-value.

Returns:

The value.