Nothing
######################################################################################################################
# Compute the sd based on non-missing values in the combined sample
SdStat = 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)!=1)
stop("Analysis model : Only one sample must be specified in the SdStat statistic.")
sample = sample.list[[1]]
# Select the outcome column and remove the missing values due to dropouts/incomplete observations
outcome = sample[, "outcome"]
result = stats::sd(stats::na.omit(outcome))
}
else if (call == TRUE) {
result = list("SD")
}
return(result)
}
# End of SdStat
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