Well, it finally occured to me - predict.nnet() can't handle missing values. In that case it's not really clear what's the point of adding na.action to nnet() if I'm going to run into problems with missing values later anyway... P.S. Anybody who finds my postings insulting, please write a mail filter for my address. Although I can not understand why it may insult anybody. P.P.S. Must be related to cultural differences, I guess... -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._