feigl: Leukaemia survival times --- Feigl \& Zelen
Description
The file contains the
survival times in weeks of 33 patients
suffering from acute myelogeneous leukaemia, and the values of two
explanatory variables, white blood cell count in thousands
and a positive or negative factor , positive values being defined by
the presence of Auer rods and/or significant
granulature of the leukaemic cells in the bone marrow at diagnosis,
and negative values if both Auer rods and granulature are
absent.
Format
A data.frame of 33 obs. of 3 variables:
[,1] |
wbc |
numeric, white blood cell count in thousands |
[,2] |
time |
integer, survival time in weeks |
[,3] |
ag |
Factor w/ 2 levels "+","-" |
[,1] |
Source
Feigl, P. and Zelen, M. (1965). "Estimation of exponential probabilities with
concomitant information",
Biometrics, 21, 826--38.