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## org.apache.commons.math.distribution
Interface PascalDistribution

All Superinterfaces:
  DiscreteDistribution, Distribution, IntegerDistribution

All Known Implementing Classes:
  PascalDistributionImpl

    public interface PascalDistribution

extends IntegerDistribution

The Pascal distribution. The Pascal distribution is a special case of the Negative Binomial distribution where the number of successes parameter is an integer. There are various ways to express the probability mass and distribution functions for the Pascal distribution. The convention employed by the library is to express these functions in terms of the number of failures in a Bernoulli experiment [2].

References:

1. Negative Binomial Distribution
Waiting Time in a Bernoulli Process

Since:
  1.2
Version:
  $Revision: 920852 $ $Date: 2010-03-09 07:53:44 -0500 (Tue, 09 Mar 2010) $

Method Summary
`int` | `getNumberOfSuccesses()` Access the number of successes for this distribution.
`double` | `getProbabilityOfSuccess()` Access the probability of success for this distribution.
`void` | `setNumberOfSuccesses(int successes)` Deprecated. as of v2.1
`void` | `setProbabilityOfSuccess(double p)` Deprecated. as of v2.1

Methods inherited from interface org.apache.commons.math.distribution.IntegerDistribution
`cumulativeProbability, cumulativeProbability, inverseCumulativeProbability, probability`

Methods inherited from interface org.apache.commons.math.distribution.DiscreteDistribution
`probability`

Methods inherited from interface org.apache.commons.math.distribution.Distribution
`cumulativeProbability, cumulativeProbability`

Method Detail

### getNumberOfSuccesses

    int getNumberOfSuccesses()

  Access the number of successes for this distribution.

  Returns:
    the number of successes

### getProbabilityOfSuccess

    double getProbabilityOfSuccess()

  Access the probability of success for this distribution.

  Returns:
    the probability of success

### setNumberOfSuccesses

    @Deprecated
    void setNumberOfSuccesses(int successes)

  Deprecated. as of v2.1

  Change the number of successes for this distribution.

  Parameters:
    `successes` - the new number of successes

### setProbabilityOfSuccess

    @Deprecated
    void setProbabilityOfSuccess(double p)

  Deprecated. as of v2.1

  Change the probability of success for this distribution.

  Parameters:
    `p` - the new probability of success

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