cancer {npsurv} | R Documentation |
Breast Retraction Times after Beast Cancer Treatments.
Description
Contains the breast retraction times in months for 94 breast cancer patients who received either radiation therapy or radiation therapy plus adjuvant chemotherapy.
Format
A data frame with 94 observations and 3 variables:
L: left-end points of the interval-censored retraction times;
R: right-end points of the interval-censored retraction times;
group: either RT
(radiation therapy) or RCT
(radiation therapy
plus adjuvant chemotherapy).
Source
Finkelstein and Wolfe (1985).
References
Finkelstein, D. M. and R. A. Wolfe (1985). A semiparametric model for regression analysis of interval-censored failure time data. Biometrics, 41, pp.933-945.
See Also
Examples
data(cancer)
i = cancer$group == "RT"
plot(npsurv(cancer[i,1:2]), xlim=c(0,60))
plot(npsurv(cancer[!i,1:2]), add=TRUE, col="green3")
[Package npsurv version 0.5-0 Index]