A data frame containing the observations from the GBSG2 study.
This is taken almost verbatim from the
This data frame contains the observations of 686 women:
hormonal therapy, a factor at two levels
numeric version of
of the patients in years.
menopausal status, a factor at two
pre (premenopausal) and
Numeric version of
tumor size (in mm).
tumor grade, a ordered factor at levels
I < II <
number of positive nodes.
progesterone receptor (in fmol).
estrogen receptor (in fmol).
recurrence free survival time (in days).
censoring indicator (0- censored, 1- event).
Torsten Hothorn (2019). TH.data: TH's Data Archive. R package version 1.0-10. https://CRAN.R-project.org/package=TH.data
M. Schumacher, G. Basert, H. Bojar, K. Huebner, M. Olschewski, W. Sauerbrei, C. Schmoor, C. Beyerle, R.L.A. Neumann and H.F. Rauschecker for the German Breast Cancer Study Group (1994), Randomized \(2\times2\) trial evaluating hormonal treatment and the duration of chemotherapy in node-positive breast cancer patients. Journal of Clinical Oncology, 12, 2086--2093.