I found this solution but it must another one much more "R-friendly" ?
for (a in 1:9) { if (is.na(pfit$coefficients[[a]])) (pfit$coefficients[[a]]<-0) } Again thank you in advance for explainations concerning NA, Ptit Bleu. -- View this message in context: http://www.nabble.com/Can-I-replace-NA-by-0-%28if-yes%2C-how%29---tf4765597.html#a13630590 Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.