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java.lang.Objectjhplot.math.num.pdf.ContinuousDistribution
jhplot.math.num.pdf.Gamma
public class Gamma
The Gamma distribution (1).
References:
Constructor Summary | |
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Gamma()
Default constructor. |
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Gamma(double a,
double b)
Create a distribution with the given alpha and beta values. |
Method Summary | |
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double |
cumulativeProbability(double x)
The CDF for this distribution. |
double |
getAlpha()
Access the alpha parameter. |
double |
getBeta()
Access the beta parameter. |
double |
inverseCumulativeProbability(double p)
The inverse CDF for this distribution. |
void |
setAlpha(double a)
Modify the alpha parameter. |
void |
setBeta(double b)
Modify the beta parameter. |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public Gamma()
public Gamma(double a, double b)
a
- the alpha parameter.b
- the beta parameter.Method Detail |
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public double cumulativeProbability(double x) throws NumericException
cumulativeProbability
in class ContinuousDistribution
x
- the value at which the CDF is evaluated.
NumericException
- if the cumulative probability can not be
computed.public double getAlpha()
public double getBeta()
public double inverseCumulativeProbability(double p) throws NumericException
inverseCumulativeProbability
in class ContinuousDistribution
p
- the cumulative probability.
NumericException
- if the inverse cumulative probability can not be
computed.public void setAlpha(double a)
a
- the new alpha value.public void setBeta(double b)
b
- the new beta value.
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