search for: rad2ulti

...e a panel with the attached data frame. using the following code: > PanelRio = DataRiopaila[which(duplicated(DataRiopaila$SEC_STE)==T),] > PanelRio=plm.data(PanelRio,index=c("SEC_STE","FechaSiembra")) series Pluv3Meses,PluvMes4al10,Pluv2UltimosMeses,Rad3Meses,RadMes4al10,Rad2UltimosMeses are NA and have been removed It tells me it removes couple of series because they are NA, and I don't understand why because if I do: > PanelRio = DataRiopaila[which(duplicated(DataRiopaila$SEC_STE)==T),] > length(which(is.na(PanelRio[,"Pluv3Meses"])==T)) [1] 474 >...