distributions {coenocliner} | R Documentation |

## Wrappers to random number generators for use with coenocliner

### Description

These functions are simple wrappers around existing random number generators in R to provide stochastic count data for simulated species.

### Usage

```
NegBin(n, mu, alpha)
Poisson(n, mu)
Bernoulli(n, mu)
Binomial(n, mu, size)
BetaBinomial(n, mu, size, theta)
ZIP(n, mu, zprobs)
ZINB(n, mu, alpha, zprobs)
ZIB(n, mu, size, zprobs)
ZIBB(n, mu, size, theta, zprobs)
```

### Arguments

`n` |
the number of random draws, equal to number of species times the number of gradient locations. |

`mu` |
the mean or expectation of the distribution. For |

`alpha` |
numeric; dispersion parameter for the negative binomial distribution. May be a vector of length |

`size` |
numeric; binomial denominator, the total number of individuals counted for example |

`theta` |
numeric; a positive |

`zprobs` |
numeric; zero-inflation parameter giving the proportion of extraneous zeros. Must be in range |

### Value

a vector of random draws from the stated distribution.

### Author(s)

Gavin L. Simpson

### References

Bolker, B.M. (2008) *Ecological Models and Data
in R.* Princeton University Press.

*coenocliner*version 0.2-3 Index]