The melanom data frame has 205 rows and 7 columns.
It contains data relating to survival of patients after operation for
malignant melanoma collected at Odense University Hospital by K.T.
Drzewiecki.
Arguments
source
P.K. Andersen, {\O}. Borgan, R.D. Gill, N. Keiding (1991),
Statistical Models Based on
Counting Processes, Appendix 1, Springer-Verlag.