BoxCox {Rfit}

Box and Cox (1964) data.

Description

The data are the results of a 3 * 4 two-way design, where forty-eight animals were exposed to three different poisons and four different treatments. The design is balanced with four replications per cell. The response was the log survival time of the animal.

Usage

data(BoxCox)

Format

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

logSurv

log Survival Time

Poison

a factor indicating poison level

Treatment

a factor indicating treatment level

Source

Box, G.E.P. and Cox, D.R. (1964), An analysis of transformations, Journal of the Royal Statistical Society, Series B, Methodological, 26, 211-252.

References

Hettmansperger, T.P. and McKean J.W. (2011), Robust Nonparametric Statistical Methods, 2nd ed., New York: Chapman-Hall.

Examples

data(BoxCox)
with(BoxCox,interaction.plot(Treatment,Poison,logSurv,median))
raov(logSurv~Poison+Treatment,data=BoxCox)