Format
This data frame contains the following columns:
- poison
- factor with 3 levels: P1, P2 and P3.
- treat
- factor with 4 levels: trA, trB, trC and trD.
- y
- numeric. Survival time as response.
Source
Box, G. E. P. and D. R. Cox, An Analysis of Transformations (with discussion),
Journal of the Royal Statistical Society,
Series B, Vol. 26, No. 2, pp. 211--254.