R330 (version 1.0)

lizard.df: Lizard data

Description

Site preferences of two species of lizard, grahami and opalinus

Usage

data(lizard.df)

Format

A data frame with 12 observations on the following 5 variables:

length

perch lenght (short, long)

height

perch height (high, low)

time

time of day (early, late, mid)

r

number of grahami lizards

n

total number of lizards

Source

Schoener, T. W. (1970) Nonsynchronous spatial overlap of lizards in patchy habitats. Ecology 51, 408-418.

References

McCullagh, P. and Nelder, J. A. (1989.) Generalized Linear Models (2nd Edition). Chapman and Hall, London.

Examples

data(lizard.df)
plot.design(lizard.df, y=log(lizard.df$r
/(lizard.df$n-lizard.df$r)), ylab="mean of logits")