The heart and body weights of samples of male and female cats used for
digitalis experiments. The cats were all adult, over 2 kg body weight.
cats
A data frame with 144 rows and 3 columns:
- Sex
Sex of cat as a factor with levels F and M
- Bwt
Body weight in kilograms
- Hwt
Heart weight in kilograms
Source
Fisher, R.A. (1947). The analysis of covariance method for the
relation between a part and the whole. Biometrics, 3 2, 65-8.
References
Venables, W. N. & Ripley, B. D. (2002) Modern Applied Statistics
with S. Fourth Edition. Springer, New York. ISBN 0-387-95457-0