> On Jun 12, 2017, at 1:32 PM, Manqing Liu <hopkins0...@gmail.com> wrote: > > Hi all, > > I created a predicted variable based on a model, but somehow not all > observations have a predicted value. When I tired to add the predicated > value to the main data set (data$pr <- pr) , it said: > replacement has 34333 rows, data has 34347. > Do you know how to solve that? > > Thanks, > Manqing > > [[alternative HTML version deleted]]
First, you should read the Posting Guide. Then you should read the help page for ?predict. Only then should you write a follow-up email (in plain text) with code that constructs a simple example using whatever method was used to construct this `pr` variable and provide enough information to support a sensible answer. > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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. David Winsemius Alameda, CA, USA ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
