org.apache.commons.math.distribution

Interface NormalDistribution

All Superinterfaces:

ContinuousDistribution, Distribution, HasDensity<java.lang.Double>

All Known Implementing Classes:

NormalDistributionImpl

public interface NormalDistribution
extends ContinuousDistribution, HasDensity<java.lang.Double>

Normal (Gauss) Distribution.

References:

• Normal Distribution

Method Summary

Modifier and Type	Method and Description
double	density(java.lang.Double x) Return the probability density for a particular point.
double	getMean() Access the mean.
double	getStandardDeviation() Access the standard deviation.
void	setMean(double mean) Deprecated. as of v2.1
void	setStandardDeviation(double sd) Deprecated. as of v2.1

Methods inherited from interface org.apache.commons.math.distribution.ContinuousDistribution

inverseCumulativeProbability

Methods inherited from interface org.apache.commons.math.distribution.Distribution

cumulativeProbability, cumulativeProbability

Method Detail

getMean

double getMean()

Access the mean.

Returns:

mean for this distribution

setMean

@Deprecated
void setMean(double mean)

Deprecated. as of v2.1

Modify the mean.

Parameters:

mean - for this distribution

getStandardDeviation

double getStandardDeviation()

Access the standard deviation.

Returns:

standard deviation for this distribution

setStandardDeviation

@Deprecated
void setStandardDeviation(double sd)

Deprecated. as of v2.1

Modify the standard deviation.

Parameters:

sd - standard deviation for this distribution

density

double density(java.lang.Double x)

Return the probability density for a particular point.

Specified by:

density in interface HasDensity<java.lang.Double>

Parameters:

x - The point at which the density should be computed.

Returns:

The pdf at point x.