poison {lmreg}

Survival times of poisoned animals

Description

Survival times of animals exposed to poison and treatment (Box and Cox, 1964).

Usage

data(poison)

Format

A data frame with 48 observations on the following 3 variables.

Survtime

Survival time (in 10 hour units)

Treatment

Treatment type: 1 = treatment A, 2 = treatment B, 3 = treatment C, 4 = treatment D

Poison

Poison type: 1 = Poison I, 2 = Poison II, 3 = Poison III

Source

Box, G.E.P. and Cox, D.R. (1964) An analysis of transformations. J. Roy. Statist. Soc. Ser. B, 26, pp.211-252.

Examples

data(poison)
head(poison)