Smoking data frame has 55 rows and 9 columns.
This data frame contains the following columns:
numeric, patient number.
factor, sex of patient.
factor, age group of patient, grouping consisting of those in their twenties, those in their thirties and so on.
numeric, tar yields of the cigarettes.
numeric, nicotine yields of the cigarettes.
numeric, carbon monoxide (CO) yield of the cigarettes.
numeric, total volume puffed smoke.
numeric, blood plasma nicotine level.
numeric, carboxyhaemoglobin level, i.e. amount of CO absorbed by the blood stream.
The data describes different smoking habits of probands.
Hand and Taylor (1987), Study F Smoking Styles.
D.J. Hand and C.C. Taylor (1987), Multivariate analysis of variance and repeated measures. London: Chapman \& Hall, pp. 167–181.