Description

The catsM data frame has 97 rows and 3 columns.

144 adult (over 2kg in weight) cats used for experiments with the drug digitalis had their heart and body weight recorded. 47 of the cats were female and 97 were male. The catsM data frame consists of the data for the male cats. The full data are in dataset cats in package MASS.

Usage

Format

This data frame contains the following columns:

Sex

A factor for the sex of the cat (levels are F and M: all cases are M in this subset).

Bwt

Body weight in kg.

Hwt

Heart weight in g.

Source

The data were obtained from

Fisher, R.A. (1947) The analysis of covariance method for the relation between a part and the whole. Biometrics, 3, 65–68.

References

Davison, A.C. and Hinkley, D.V. (1997) Bootstrap Methods and Their Application. Cambridge University Press.

Venables, W.N. and Ripley, B.D. (1994) Modern Applied Statistics with S-Plus. Springer-Verlag.

See Also

cats