Hi, I have some trouble with Amelia. I run the following: all.data<-read.csv2("jldata2.csv", header = TRUE) summary(all.data) corp<-plm.data(all.data, cbind("country", "year")) data.mi <- Amelia::amelia(corp, idvars=1, ts=2, cs=3,intercs=FALSE,nom=4,5,6, 7, 8, 13, 14,19:27, 61 , bounds=bounds,log=c(15, 16,17)) And get the result: Amelia Error Code: 24 The number of polynomial terms to include must be between 1 and 3. Does anyone have a suggestion for next steps? Best, Johanna