Hi everybody, recently a member of the community pointed me to the useful predict.lm() comment. While I was toying with it, I stumbled across the following problem. I do the regression with data from five years. But I want to do a prediction with predict.lm for only one year. Thus my dataframe for predict.lm(mod, newdata=dataframe) is shorter than the orginial vector that I did the regression with. It gives you the following error: Warning message: 'newdata' had 365 rows but variable(s) found have 1825 rows Of course I can extend the new dataframe with a few thousands NAs, but is there a more elegant solution?
Thank you! Frauke -- View this message in context: http://r.789695.n4.nabble.com/predict-lm-if-regression-vector-is-longer-than-predicton-vector-tp4644881.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.
