Survival times in months after mastectomy of women with breast cancer. The cancers are classified as having metastized or not based on a histochemical marker.
A data frame with 42 observations on the following 3 variables.
survival times in months.
a logical indicating if the event was observed (
or if the survival time was censored (
a factor at levels
B. S. Everitt and S. Rabe-Hesketh (2001), Analysing Medical Data using S-PLUS, Springer, New York, USA.