ova: Ovarian cancer data set
In CoxRidge: Cox Models with Dynamic Ridge Penalties

Description Usage Format Source Examples

Survival times of 358 ovarian cancer patients with information on three covariates, karnofsky status (karn), tumor diameter (diam), figo stage (figo) and patients id.

data(ova)

A data frame with 358 observations on the following 6 variables.

time: Survival times in days.
death: Status indicator, 0=censored, 1=death.
karn: Karnofsky status at the start of the follow up.
figo: Figo stage.
diam: Timour diameter.
x: Patient id.

Verweij, P. J. M. and Van Houwelingen H. C. (1993) Cross-validation in survival analysis. Statistics in Medicine: 12, 2305-2314

1 2	data(ova) str(ova)

Loading required package: survival
Loading required package: splines
'data.frame':	358 obs. of  6 variables:
 $ time : int  7 8 9 10 13 15 16 30 32 41 ...
 $ death: int  1 1 1 1 1 1 1 1 1 1 ...
 $ karn : int  1 2 4 4 2 3 3 3 4 3 ...
 $ figo : int  1 1 1 1 1 0 1 1 1 1 ...
 $ diam : int  3 2 4 4 4 1 4 1 3 4 ...
 $ x    : int  1 2 3 4 5 6 7 8 9 10 ...