jhplot.math.num.pdf
Class Rayleigh
- java.lang.Object
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- jhplot.math.num.pdf.ContinuousDistribution
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- jhplot.math.num.pdf.Rayleigh
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- All Implemented Interfaces:
- Distribution
public class Rayleigh extends ContinuousDistribution
The Rayleigh distribution.
References:
- Eric W. Weisstein. "Rayleigh Distribution." From MathWorld--A Wolfram Web Resource. http://mathworld.wolfram.com/Rayleigh.html
- Since:
- 1.2
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Constructor Summary
Constructors Constructor and Description Rayleigh()
Default constructor.Rayleigh(double s)
Create a distribution with the scale parameter.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method and Description double
cumulativeProbability(double x)
The CDF for this distribution.double
getScale()
Access the scale parameter.double
inverseCumulativeProbability(double p)
The inverse CDF for this distribution.void
setScale(double s)
Modify the scale parameter.
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Constructor Detail
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Rayleigh
public Rayleigh()
Default constructor. The scale parameter is set to one.
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Rayleigh
public Rayleigh(double s)
Create a distribution with the scale parameter.- Parameters:
s
- the scale parameter.
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Method Detail
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cumulativeProbability
public double cumulativeProbability(double x)
The CDF for this distribution. This method returns P(X < x).- Specified by:
cumulativeProbability
in classContinuousDistribution
- Parameters:
x
- the value at which the CDF is evaluated.- Returns:
- CDF for this distribution.
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getScale
public double getScale()
Access the scale parameter.- Returns:
- the scale parameter.
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inverseCumulativeProbability
public double inverseCumulativeProbability(double p)
The inverse CDF for this distribution. This method returns x such that, P(X < x) = p.- Specified by:
inverseCumulativeProbability
in classContinuousDistribution
- Parameters:
p
- the cumulative probability.- Returns:
- x
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setScale
public void setScale(double s)
Modify the scale parameter.- Parameters:
s
- The new scale parameter value.
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