Description Usage Format Source Examples

The data are the numbers of attempts at foraging by 20 adult and 20 immature green-backed herons. The data are listed as grouped (adult or immature) count data i.e. number of herons having a particular count value.

1 | ```
data("herons.case")
``` |

A data frame with 40 observations on the following 2 variables.

`group`

a factor with levels

`Adult`

`Immature`

`number.attempts`

a numeric vector

Zhu J, Eickhoff J, Kaiser M (2003). Modelling the Dependence between Number of Trials and Success Probability in Beta-Binomial-Poisson Mixture Distributions.
*Biometrics*, **59**, 955-961.
doi: 10.1111/j.0006-341X.2003.00110.x.

1 2 |

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