DiscreteProbabilityDistribution







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org.statcato.statistics

Class DiscreteProbabilityDistribution

java.lang.Object
org.statcato.statistics.DiscreteProbabilityDistribution


Direct Known Subclasses: BinomialProbabilityDistribution, GeometricProbabilityDistribution, PoissonProbabilityDistribution



public abstract class DiscreteProbabilityDistributionextends java.lang.Object



Abtract base class for different types of discrete probability distributions. Subclasses must implement density and cumulativeProbability methods.




Since:
1.0
Version:
%I%, %G%
Author:
Margaret Yau











Constructor Summary


DiscreteProbabilityDistribution()


           


 






Method Summary



abstract  double
cumulativeProbability(double x)


          Returns the cumulative probabililty up to x.



abstract  double
density(double x)


          Returns the density of the distribution at x.



 java.lang.Double
inverseCumulativeProbability(double x1,
double x2,
double tol,
double area)


          Returns the inverse cumulative probability.


 


Methods inherited from class java.lang.Object


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


 








Constructor Detail




DiscreteProbabilityDistribution

public DiscreteProbabilityDistribution()









Method Detail




density

public abstract double density(double x)

Returns the density of the distribution at x.


Parameters:x -
Returns:probability density at x





cumulativeProbability

public abstract double cumulativeProbability(double x)

Returns the cumulative probabililty up to x.


Parameters:x -
Returns:cumulative probability P(












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