lifetime {rsq}

Lifetimes in Two Different Environments.

Description

There are 27 tests in each of the two environments.

Usage

data("lifetime")

Format

A data frame with 54 observations on the following 2 variables.

time

the lifetime (x10).

env

the environment of each test (kg/mm^2).

Details

This data set is discussed by Wang et al. (1992).

Author(s)

Dabao Zhang, Department of Statistics, Purdue University

Source

Wang, H., Ma, B., and Shi, J. (1992). Estimation of environmental factors for the inverse gaussian distribution. Microelectron. Reliab., 32: 931-934.

See Also

rsq, rsq.partial, pcor, simglm.

Examples

data(lifetime)
summary(lifetime)
head(lifetime)

attach(lifetime)
igfit <- glm(time~env,family=inverse.gaussian)
rsq(igfit)
rsq(igfit,adj=TRUE)