I found the same annoying warning, but I ignore it, as you said it's not use at all. The error (at least for me) is in the line
class(xreg) <- NULL This makes xreg a list, so you cannot apply cbind....maybe they will fix that some time in the future (you can always recompile the code) Huber -- View this message in context: http://r.789695.n4.nabble.com/predict-Arima-warnings-from-xreg-magic-tp1746944p2240731.html 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.