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## umontreal.iro.lecuyer.randvar
Class BinomialConvolutionGen

    java.lang.Object
      umontreal.iro.lecuyer.randvar.RandomVariateGen
          umontreal.iro.lecuyer.randvar.RandomVariateGenInt
              umontreal.iro.lecuyer.randvar.BinomialGen
                  umontreal.iro.lecuyer.randvar.BinomialConvolutionGen

    public class BinomialConvolutionGen

extends BinomialGen

Implements binomial random variate generators using the convolution method. This method generates n Bernouilli random variates with parameter p and adds them up. Its advantages are that it requires little computer memory and no setup time. Its disadvantage is that it is very slow for large n. It makes sense only when n is small.

Constructor Summary
`BinomialConvolutionGen(RandomStream s, BinomialDist dist)` Creates a random variate generator for the binomial distribution `dist` and stream `s`.
`BinomialConvolutionGen(RandomStream s, int n, double p)` Creates a binomial random variate generator with parameters n and p, using stream `s`.

Method Summary
`int` | `nextInt()` Generates a random number (an integer) from the discrete distribution contained in this object.
`static int` | `nextInt(RandomStream s, int n, double p)`

Methods inherited from class umontreal.iro.lecuyer.randvar.BinomialGen
`getN, getP`

Methods inherited from class umontreal.iro.lecuyer.randvar.RandomVariateGenInt
`getDistribution, nextArrayOfInt`

Methods inherited from class umontreal.iro.lecuyer.randvar.RandomVariateGen
`getStream, nextArrayOfDouble, nextDouble, setStream`

Methods inherited from class java.lang.Object
`equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### BinomialConvolutionGen

    public BinomialConvolutionGen(RandomStream s,
                                  int n,
                                  double p)

  Creates a binomial random variate generator with parameters n and p, using stream `s`.

### BinomialConvolutionGen

    public BinomialConvolutionGen(RandomStream s,
                                  BinomialDist dist)

  Creates a random variate generator for the binomial distribution `dist` and stream `s`.

Method Detail

### nextInt

    public int nextInt()

  Description copied from class: `RandomVariateGenInt`
  Generates a random number (an integer) from the discrete distribution contained in this object. By default, this method uses inversion by calling the `inverseF` method of the distribution object. Alternative generating methods are provided in subclasses.

  Overrides:
    `nextInt` in class `RandomVariateGenInt`
  Returns:
    the generated value

### nextInt

    public static int nextInt(RandomStream s,
                              int n,
                              double p)

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To submit a bug or ask questions, send an e-mail to Pierre L'Ecuyer.