Rat tumor data

Source: R/chandwich-package.R

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

Format

A matrix with 71 rows and 2 columns.

Source

Table 5.1 of Gelman, A., Carlin, J. B., Stern, H. S. Dunson, D. B., Vehtari, A. and Rubin, D. B. (2013) Bayesian Data Analysis, Chapman & Hall / CRC. http://www.stat.columbia.edu/~gelman/book/data/rats.asc

References

Tarone, R. E. (1982) The use of historical information in testing for a trend in proportions. Biometrics, 38, 215-220.