On this Picostat.com statistics page, you will find information about the cats data set which pertains to Anatomical Data from Domestic Cats. The cats data set is found in the MASS R package. Try to load the cats data set in R by issuing the following command at the console data("cats"). This may load the data into a variable called cats. If R says the cats data set is not found, you can try installing the package by issuing this command install.packages("MASS") and then attempt to reload the data with library("MASS") followed by data("cats"). Perhaps strangley, if R gives you no output after entering a command, it means the command succeeded. If it succeeded you can see the data by typing cats at the command-line which should display the entire dataset.
If you need to download R, you can go to the R project website. You can download a CSV (comma separated values) version of the cats R data set. The size of this file is about 1,759 bytes.
Anatomical Data from Domestic Cats
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.
This data frame contains the following columns:
sex: Factor with evels
body weight in kg.
heart weight in g.
R. A. Fisher (1947) The analysis of covariance method for the relation
between a part and the whole, Biometrics 3, 65–68.
Venables, W. N. and Ripley, B. D. (2002)
Modern Applied Statistics with S. Fourth edition. Springer.
Dataset imported from https://www.r-project.org.