vitcap2 {ISwR}R Documentation

Vital capacity, full data set

Description

The vitcap2 data frame has 84 rows and 3 columns, age and vital capacity for workers in the cadmium industry.

Format

This data frame contains the following columns:

group
a numeric vector. Group codes are 1: Exposed > 10~years, 2: Exposed < 10~years, 3: Not exposed.
age
a numeric vector. Age in years.
vital.capacity
a numeric vector. Vital capacity (a measure of lung volume) (l).

Source

P. Armitage and G. Berry (1987), Statistical Methods in Medical Research, 2nd ed., Blackwell, p.~286.

Examples

data(vitcap2)
plot(vital.capacity~age, pch=group, data=vitcap2)

[Package ISwR version 1.0-5 Index]