gehan {SMIR} | R Documentation |
Data from a clinical trial which compared 6-mercaptopurine (6-MP) to a placebo in the maintenance of remissions in acute leukemia. The remission times in weeks one year after the start of the study were recorded. Participants were paired according to remission status, an aspect not described in Gehan (1965).
data(gehan)
A dataframe containing 42 obs. of 5 variables:
[1,] | pair | numeric defining pair according to remission status |
[2,] | time | numeric time to remission available at the time the trial was stoppped |
[3,] | cens | numeric "0" indicating censored ,"1" uncensored |
[4,] | treat | factor w/ 2 levels "6-MP", "control" |
See Ch. 6 of SMIR
Gehan, E. A. (1965), "A generalized Wilcoxon test for comparing arbitrarily singly-censored samples", Biometrika, 52, 203–233.