Description Usage Format References Examples
Dataset toydata contains repeated measurements made in 3 patients. It mimics randomized clinical trials data with two parallel arms with a repeated measurement of a time-varying binary covariate, which could be the time-varying confounder acting both on the survival and treatment censoring.
1 | data("toydata")
|
A data frame with 3 observations on the following 12 variables.
id
a numeric vector corresponding to the patient's identifier
randt
a vector containing the date of the randomization visit
lastdt
a vector containing the date of latest news
status
a numeric vector. The value equals to 1 if the patient dies at lastdt (and 0 otherwise)
age
a numeric vector containing patient’s age (in years) at randomization
ps1
a numeric vector containing the values (0 or 1) of a repeated measurement
happening on date randt
. Note that some of them could be missing
ps2
a numeric vector containing the values (0 or 1) of a repeated measurement
happening on date dt2
. Note that some of them could be missing
ps3
a numeric vector containing the values (0 or 1) of a repeated measurement
happening on date dt3
. Note that some of them could be missing
dt2
a vector containing the dates of measurement
of ps2
. Note that some of them could be missing
dt3
a vector containing the date of measurement
ps3
. Note that some of them could be missing
arm
a vector containing the patient’s randomized arm
swtrtdt
a vector containing the date when the patient initiates the other arm treatment (NA if does not happen)
Graffeo, N., Latouche, A., Le Tourneau C., Chevret, S. (2019) "ipcwswitch: an R package for inverse probability of censoring weighting with an application to switches in clinical trials". Computers in biology and medicine, 111, 103339. doi : "10.1016/j.compbiomed.2019.103339"
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