search for: concentrationbqlzero

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2011 Aug 02
2
Help with aggregate syntax for a multi-column function please.
...our arguments. Could someone kindly show me the syntax? This is what I've tried so far: AUC.DF<- aggregate(PKdata, list(PKdata$Cycle, PKdata$DoseDayNominal, PKdata$Drug), function(x,tm,pt,conc) {AUC(x)}, tm="TimeBestEstimate", pt="Pt", conc="ConcentrationBQLzero" ) AUC.DF<- aggregate(PKdata, list(PKdata$Cycle, PKdata$DoseDayNominal, PKdata$Drug), function(x) {AUC(x,"TimeBestEstimate", "Pt", "ConcentrationBQLzero" )} ) AUC syntax is: args(AUC) function (data, time = "TIME", id = "I...