Class DRndDist

Inherits from:

Object

Declared in:

DRndDist.h

Class Hierarchy

    Object
      |
      +---DRndDist

Class Description

The DRndDist class implements pseudo random generators distributions.

Last modified:

05-Jan-2008 (DRndDist.h)

Method Index

• Random Generator Distribution class methods
  

  + (double) nextBeta :(id <DRandomable>) rnd :(double) alpha :(double) beta

  Generate a random number with a beta distribution

  Parameters:

  rnd - the uniform random generator
  alpha - the alpha parameter (>0)
  beta - the beta parameter (>0)
  

  Returns:

  the random number

  + (unsigned int) nextBinomial :(id <DRandomable>) rnd :(double) p :(unsigned int) n

  Generate a random number with a binomial distribution

  Parameters:

  rnd - the uniform random generator
  p - the probability [0,1]
  n - the number of trails (0>)
  

  Returns:

  the random number

  + (double) nextExponential :(id <DRandomable>) rnd :(double) mu

  Generate a random number with an exponential distribution

  Parameters:

  rnd - the random generator
  mu - the mean (>0)
  

  Returns:

  the random number

  + (double) nextGamma :(id <DRandomable>) rnd :(double) alpha :(double) beta

  Generate a random number with a gamma distribution

  Parameters:

  rnd - the uniform random generator
  alpha - the alpha parameter (>0)
  beta - the beta parameter (>0)
  

  Returns:

  the random number

  + (double) nextNormal :(id <DRandomable>) rnd :(double) mu :(double) sigma

  Generate a random number with a normal or gaussian distribution

  Parameters:

  rnd - the uniform random generator
  mu - the mean
  sigma - the standard deviation
  

  Returns:

  the random number

  + (double) nextPareto :(id <DRandomable>) rnd :(double) alpha : (double) beta

  Generate a random number with a pareto distribution

  Parameters:

  rnd - the uniform random generator
  alpha - the scale parameter (>0)
  beta - the shape parameter (>0)
  

  Returns:

  the random number

  + (unsigned int) nextPoisson :(id <DRandomable>) rnd :(double) mu

  Generate a random number with a poisson distribution

  Parameters:

  rnd - the uniform random generator
  mu - the mean (>=0)
  

  Returns:

  the random number

  + (double) nextPosDouble :(id <DRandomable>) rnd

  Generate a positive uniform random number <0,1>

  Parameters:

  rnd - the uniform random genetor
  the - positive uniform random number
  

  + (double) nextUniform :(id <DRandomable>) rnd :(double) start :(double) end

  Generate a random number with a uniform distribution in the range of [start,end>

  Parameters:

  rnd - the uniform random generator
  start - the start of the range
  end - the end of the range
  

  Returns:

  the random number

  + (double) nextWeibull :(id <DRandomable>) rnd :(double) alpha :(double) beta

  Generate a random number with a weibull distribution

  Parameters:

  rnd - the uniform random generator
  alpha - the scale parameter (0>)
  beta - the shape parameter (0>)
  

  Returns:

  the random number