Salamander: Salamander Mating Data

In erlisR/iLaplaceExamples: Extra Utilities and Examples for iLaplace

Description

This data set contains the data for the salamander mating experiment in McCullagh and Nelder.

Usage

data(Salamander)

Format

A list containing four components:

y	response matrix
x	fixed effect model matrix
z	random effect model matrix
i	random effect index vector

Details

The data involve two salamander populations, called rough butt (R) and whiteside (W), and each Bernoulli response is the success or failure of a mating between two salamanders. The four possible mating types are denoted R/R, R/W, W/R, and W/W (female/male). The parameterization used is as follows. The four fixed effect parameters are level parameters for these mating types (column labels for x give the order). The random effect parameters are the scale parameters for female and male, in that order. Column labels for z indicate the animal associated with the random effect, "fR1" meaning female named R1, and so forth.

Source

McCullagh and Nelder (1989), pages 439-450.

References

McCullagh, P. & Nelder, J. A. (1989). Generalized Linear Models, second edition. London: Chapman & Hall.

erlisR/iLaplaceExamples documentation built on May 16, 2019, 8:48 a.m.