Class Geometric
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- All Implemented Interfaces:
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java.io.Serializable,jline.lang.Copyable
public class Geometric extends DiscreteDistribution implements Serializable
A Geometric distribution.
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Constructor Summary
Constructors Constructor Description Geometric(double probability)
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Method Summary
Modifier and Type Method Description static voidmain(Array<String> args)doubleevalCDF(double t)Evaluates the cumulative distribution function (CDF) at the given point. doubleevalPMF(double t)doubleevalLST(double s)Evaluates the Laplace-Stieltjes Transform at s. doublegetMean()Gets the mean (expected value) of this distribution. doublegetRate()Gets the rate of this distribution (inverse of mean). doublegetSCV()Gets the squared coefficient of variation (SCV) of this distribution. doublegetSkewness()Gets the skewness of this distribution. doublegetVar()Gets the variance of this distribution. Array<double>sample(int n, Random random)Gets n samples from the distribution MatrixCellgetProcess()-
Methods inherited from class jline.lang.processes.DiscreteDistribution
evalPMF, evalPMF -
Methods inherited from class jline.lang.processes.Distribution
evalProbInterval, getName, getNumParams, getParam, getSupport, isContinuous, isDisabled, isDiscrete, isImmediate, isMarkovian, mean, name, numParams, param, rate, sample, scv, setNumParams, setParam, skewness, support, var -
Methods inherited from class jline.lang.Copyable
copy -
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Method Detail
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evalCDF
double evalCDF(double t)
Evaluates the cumulative distribution function (CDF) at the given point.
- Parameters:
t- the point at which to evaluate the CDF- Returns:
the CDF value at point t
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evalPMF
double evalPMF(double t)
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evalLST
double evalLST(double s)
Evaluates the Laplace-Stieltjes Transform at s. For Geometric(p), LST(s) = p*e^(-s) / (1 - (1-p)*e^(-s))
- Parameters:
s- the Laplace domain variable- Returns:
the LST value at s
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getMean
double getMean()
Gets the mean (expected value) of this distribution.
- Returns:
the mean value
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getRate
double getRate()
Gets the rate of this distribution (inverse of mean).
- Returns:
the rate value (1/mean)
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getSCV
double getSCV()
Gets the squared coefficient of variation (SCV) of this distribution. SCV = Var(X) / E[X]^2.
- Returns:
the squared coefficient of variation
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getSkewness
double getSkewness()
Gets the skewness of this distribution. Skewness measures the asymmetry of the probability distribution.
- Returns:
the skewness value
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getVar
double getVar()
Gets the variance of this distribution. Computed as SCV * mean^2.
- Returns:
the variance
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sample
Array<double> sample(int n, Random random)
Gets n samples from the distribution
- Parameters:
n- - the number of samples- Returns:
- n samples from the distribution
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getProcess
MatrixCell getProcess()
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