drs: Diabetic Retinopathy Data
In dave-harrington/eventtimedata: Event time data for teaching
Description
Usage
Format
Details
References
Examples
Description
Study begun in 1971 to examine effectiveness of laser therapy vs observation. This dataset has the 197 subjects analyzed in Huster, et al (1989). There is a line for each eye in the dataset, so there are 394 rows.
Usage
1
data("drs")
Format
A data frame with 394 observations on the following 5 variables.
idparticipant id.
obstimetime to failure, possibly censored
failfailure indicator, 0 = censored, 1 = fail
agea factor with levels 20 or younger older than 20
txa factor with levels control laser
Details
Data can be used to illustrate correlated survival data
References
Modelling paired survival data with covariates. Huster WJ, Brookmeyer R, Self SG. Biometrics 1989, Vo45, No 1.
Examples
1
2
dave-harrington/eventtimedata documentation built on May 7, 2020, 2 p.m.
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Description Usage Format Details References Examples
Description
Study begun in 1971 to examine effectiveness of laser therapy vs observation. This dataset has the 197 subjects analyzed in Huster, et al (1989). There is a line for each eye in the dataset, so there are 394 rows.
Usage
1 | data("drs")
|
Format
A data frame with 394 observations on the following 5 variables.
idparticipant id.
obstimetime to failure, possibly censored
failfailure indicator, 0 = censored, 1 = fail
agea factor with levels
20 or youngerolder than 20txa factor with levels
controllaser
Details
Data can be used to illustrate correlated survival data
References
Modelling paired survival data with covariates. Huster WJ, Brookmeyer R, Self SG. Biometrics 1989, Vo45, No 1.
Examples
1 2 |
R Package Documentation
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