# NOT RUN {
# To obtain the times parameter, we can apply the timesTokeep function on the same
# dataframe in the wide format
kept.t <- timesTokeep(toydata, id = "id",
tstart = "randt", tstop = "lastdt",
mes.cov = list(c("ps1", "ps2", "ps3")),
time.cov = list(c("randt", "dt2", "dt3")))
# Now, we can build the long format
toy.long <- wideToLongTDC(data = toydata, id = "id",
tstart = "randt", tstop = "lastdt", event = "status",
bas.cov = c("age", "arm", "swtrtdt"),
mes.cov = list(TDconf = c("ps1", "ps2", "ps3")),
time.cov = list(c("randt", "dt2", "dt3")),
times = kept.t[[1]])
# Put dates in numeric format with tstart at 0
toy.long$tstart <- as.numeric(toy.long$tstart)
toy.long$tstop <- as.numeric(toy.long$tstop)
toy.long$swtrtdt <- as.numeric(toy.long$swtrtdt)
tabi <- split(toy.long, toy.long$id)
L.tabi <- length(tabi)
tablist <- lapply(1:L.tabi, function(i){
refstart <- tabi[[i]]$tstart[1]
tabi[[i]]$tstart <- tabi[[i]]$tstart - refstart
tabi[[i]]$tstop <- tabi[[i]]$tstop - refstart
tabi[[i]]$swtrtdt <- tabi[[i]]$swtrtdt - refstart
return(tabi[[i]])
})
toy.long <- do.call( rbind, tablist )
# Patients are censored when initiating the other arm treatment, that is, at time swtrtdt
toy.long2 <- cens.ipw(toy.long, id = "id", tstart = "tstart", tstop = "tstop",
event = "event", arm = "arm",
realtrt = FALSE, censTime ="swtrtdt")
# We collect all event times
# (death for both arms and treatment censoring according to the trt arm)
rep.times1 <- unique(c(toy.long2$tstop[toy.long2$cens==1 & toy.long2$arm == "A"],
toy.long2$tstop[toy.long2$event==1]))
rep.times2 <- unique(c(toy.long2$tstop[toy.long2$cens==1 & toy.long2$arm == "B"],
toy.long2$tstop[toy.long2$event==1]))
# to put times in same order as arms levels
levels(toy.long2[, "arm"])
# Now, we can replicate the rows
toy.rep <- replicRows(toy.long2, tstart = "tstart", tstop = "tstop",
event = "event", cens = "cens",
times1 = rep.times1, times2 = rep.times2,
arm = "arm")
(toy.rep <- toy.rep[order(toy.rep$id), ])
# }
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