Tumor incidence in 71 groups of rate from Tarone (1982).
The matrix rat
has 71 rows and 2 columns.
Each row relates to a different group of rats.
The first column (y
) contains the number of rats with tumors.
The second column (n
) contains the total number of rats.
rats
A matrix with 71 rows and 2 columns.
Tarone, R. E. (1982) The use of historical information in testing for a trend in proportions. Biometrics, 38, 215-220. https://www.jstor.org/stable/2530304