The data frame threearm is obtained by resampling from perturbed time-to-remission
from patients in a three-arm randomized clinical trial for the treatment of major depression.
See nocrossings, ptwiseELtest and supELtest for the application.
threearmThe threearm is a data frame with 664 observations of 3 variables,
and has the following columns:
time the observed times to first remission and censoring times
censor the censoring indicator
group the grouping variable