Hi, I am trying to do multiple imputation on a panel of data and then, use the imputed values in stochastic frontier analysis. I am using this code just as a start to see if will run: mi(countrydata, n.iter = 30, R.hat = 1.1, max.minutes = 20, rand.imp.method "bootstrap", run.past.convergence = FALSE, seed = NA) Unfortunately, I get this error which seems to have to do with the panel nature of the data: Error in function (classes, fdef, mtable) : unable to find an inherited method for function "mi", for signature "plm.dim" Does anyone have experience with MI or SFA using MI-interpreted values? I started with Amelia but while I got 5 imputations but was not able to get them imported into R. Many Thanks, SA [[alternative HTML version deleted]]