Survial times of animals in a 3 x 4 factorial experiment involving poisons (3 levels) and various treatments (four levels), as described in Chapter 8 of Box, Hunter and Hunter.
data(poison)This data frame was originally poison.data from the package BHH2, but as presented here has added columns; no NAs.
PoisonFactor with three levels I, II, and III.
TreatmentFactor with four levels, A, B, C, and D.
GroupFactor with 12 levels, 1:12.
SurvTimeNumeric; survival time.
RateSurvTimeNumeric; inverse of SurvTime
RankRateSurvTimeNumeric; RateSurvTime scores have been converted to ranks, and then rescaled to have the same median as and a spread comparable to RateSurvTime
Box G. E. P, Hunter, J. S. and Hunter, W. C. (2005). Statistics for Experimenters II. New York: Wiley.