org.statcato.statistics
Class UniformProbabilityDistribution

java.lang.Object
  extended by org.statcato.statistics.ProbabilityDistribution
      extended by org.statcato.statistics.UniformProbabilityDistribution

public class UniformProbabilityDistribution
extends ProbabilityDistribution

Uniform probability distribution class. A continuous probability distribution defined by a lower and upper bound.

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

Constructor Summary
UniformProbabilityDistribution(double lower, double upper)
          Constructor, given the lower and upper bound.
 
Method Summary
 double cumulativeProbability(double x)
          Returns the cumulative probabililty up to x.
 double density(double x)
          Returns the density of the distribution at x.
 double inverseCumulativeProbability(double area)
          Returns the inverse cumulative probability.
 
Methods inherited from class org.statcato.statistics.ProbabilityDistribution
inverseCumulativeProbability
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

UniformProbabilityDistribution

public UniformProbabilityDistribution(double lower,
                                      double upper)
Constructor, given the lower and upper bound.

Parameters:
lower - lower bound
upper - upper bound
Method Detail

density

public double density(double x)
Returns the density of the distribution at x.

Specified by:
density in class ProbabilityDistribution
Parameters:
x -
Returns:
probability density at x

cumulativeProbability

public double cumulativeProbability(double x)
Returns the cumulative probabililty up to x.

Specified by:
cumulativeProbability in class ProbabilityDistribution
Parameters:
x -
Returns:
cumulative probability P(<=x)

inverseCumulativeProbability

public double inverseCumulativeProbability(double area)
Returns the inverse cumulative probability.

Parameters:
area - cumulative probability
Returns:
inverse cumulative probability