Nothing
######################################################################################################################
# Compute the number of events based on non-missing values in the combined sample
EventCountStat = function(sample.list, parameter) {
# Determine the function call, either to generate the statistic or to return description
call = (parameter[[1]] == "Description")
if (call == FALSE | is.na(call)) {
# Error checks
if (length(sample.list) == 0)
stop("Analysis model: One sample must be specified in the EventCountStat statistic.")
# Merge the samples in the sample list
sample1 = do.call(rbind, sample.list)
# Select the outcome column and remove the missing values due to dropouts/incomplete observations
outcome1 = sample1[, "outcome"]
# Remove the missing values due to dropouts/incomplete observations
outcome1.complete = outcome1[stats::complete.cases(outcome1)]
# Observed events in Sample 1 (negation of censoring indicators)
event1 = !sample1[, "patient.censor.indicator"]
event1.complete = event1[stats::complete.cases(outcome1)]
# Number of events in Sample 1
result = sum(event1.complete)
}
else if (call == TRUE) {
result = list("Number of Events")
}
return(result)
}
# End of EventCountStat
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