Survival Times of Patients with Leukemia (Feigl and Zelen)
Survival times of 33 patients with leukemia (Feigl and Zeelen, 1965). Times are measured in weeks from diagnosis. Reported covariates are white blood cell counts (WBC) and a binary variable AG that indicates a positive or negative test related to the white blood cell characteristics. Three of the observations were censored. The data was taken from Lawless (2003).
data(leukemiaFZ)
A data frame with 33 observations on the following 4 variables.
timeWeeks from diagnosis.
deltaStatus indicator: 0=censored.
AGIndicates a positive or negative test related to the white blood cell characteristics. (1=AG-positive, 2=AG-negative).
wbcWhite blood cell counts in thousands (reported covariates).
Lawless, J.F. (2003). Statistical Models and Methods for Lifetime Data. Wiley: New Jersey.
Feigl, P. and Zelen, M. (1965). Estimation of Exponential Survival Probabilities with Concomitant Information. Biometrics 21, 826-838.
## Cox-Gamma Process Example 1 # data(leukemiaFZ) # leukemia1 <- leukemiaFZ # leukemia1$wbc <- log(leukemiaFZ$wbc) # CGEX1 <- CGaMRes(data = leukemia1, K = 10, iterations = 100, thinning = 1)
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