train {mdhglm}

Train Accident Data

Description

Agresti (2007) presented the train accident data in the UK between 1975 and 2003. The respone variable y is annual number of collisions between trains and road vehicles, for t million kilometers of train travel. The covariate x is number of years since 1975.

Usage

data("train")

Format

A data frame with 29 observations on the following 4 variables.

x

number of years since 1975

y

annual number of collisions between trains and road vehicles

t

million kilometers of annual train travel

id

oberservations identifier

References

Agresti, A. (2007). An Introduction to Categorical Data Analysis. John Wiley & Sons, New York, 2nd edition.