[amelia] amelia error: Error in if (diff > iter.hist[count, 1] && count > 2)

I receive the following error when running amelia on a dataset with high missingness: Error in if (diff > iter.hist[count, 1] && count > 2) { : missing value where TRUE/FALSE needed This error has popped up several times, in different imputations (I'm trying for five) and at different points of the EM chain. I can't get through five imputations without this crash. What does the error mean? Here is my code: output <- amelia(data_1, cs = "country", ts = "year", intercs = TRUE, polytime = 2, p2s = 2, logs = c("gdpPPP2005", "gdppcppp", "pop", "gnipc"), ords = c("inc_group", "polxcons", "bnkv137", "bnkv114", "iaeexbgt"), noms = c("region", "legor"), empri = 0.01*nrow(data_1)) thanks, Amanda Pinkston - Amelia mailing list served by Harvard-MIT Data Center [Un]Subscribe/View Archive: http://lists.gking.harvard.edu/?info=amelia More info about Amelia: http://gking.harvard.edu/amelia