R330 (version 1.0)

ingots.df: Unreadiness for rolling of metal ingots

Description

An experiment testing metal ingots prepared with different soaking times and heats. The number which were not ready were counted

Usage

data(ingots.df)

Format

A data frame which shows a condensed table.

heat

heating times for ingots either 7, 24, 27 or 51

soak

soaking times for ingots either 1.0, 1.7, 2.2, 2.8 or 4.0

notready

the number of ingots not ready for rolling

total

the total number of ingots which were tested under that set of conditions

Source

D.R.Cox. (1970) The Analysis of Binary Data, p. 11

References

D.R.Cox. (1970) The Analysis of Binary Data, Chapman and Hall, London

Examples

data(ingots.df)
ingots.glm<-glm(cbind(notready, total-notready)~heat + 
   soak, weight=total, family = binomial, data = ingots.df)
summary(ingots.glm)