R: Smoking Styles

Smoking {ipred} | R Documentation

## Smoking Styles

### Description

The `Smoking` data frame has 55 rows and 9 columns.

### Usage

    data("Smoking")

### Format

This data frame contains the following columns:

NR

  numeric, patient number.

Sex

  factor, sex of patient.

Age

  factor, age group of patient, grouping consisting of those in their twenties, those in their thirties and so on.

TarY

  numeric, tar yields of the cigarettes.

NicY

  numeric, nicotine yields of the cigarettes.

COY

  numeric, carbon monoxide (CO) yield of the cigarettes.

TVPS

  numeric, total volume puffed smoke.

BPNL

  numeric, blood plasma nicotine level.

COHB

  numeric, carboxyhaemoglobin level, i.e. amount of CO absorbed by the blood stream.

### Details

The data describes different smoking habits of probands.

### Source

Hand and Taylor (1987), Study F Smoking Styles.

### References

D.J. Hand and C.C. Taylor (1987), Multivariate analysis of variance and repeated measures. London: Chapman \& Hall, pp. 167–181.

[Package ipred version 0.9-9 Index]