R: The Fish Species Data files for GAMLSS

species {gamlss.data} | R Documentation

## The Fish Species Data files for GAMLSS

### Description

species: The number of different fish species (`y=fish`) was recorded for 70 lakes of the world together with explanatory variable `x=log(lake)` area. The data are given and analyzed by Stein and Juritz (1988).

### Usage

    data(species)

### Format

Data frames each with the following variable.

`fish`

  a numeric vector showing the number of different species in 70 lakes in the word

`lake`

  a numeric vector showing the lake area

### Details

Data sets usefull for the GAMLSS booklet

### References

Stein, G. Z. and Juritz, J. M. (1988). Linear models with an inverse Gaussian-Poisson error distribution. Communications in Statistics- Theory and Methods, 17, 557-571.

### Examples

    data(species)
    with(species, plot(fish~log(lake)))

[Package gamlss.data version 5.1-0 Index]