see ?na.exclude you can set na.action='na.exclude' when fit the model.
On 15 April 2010 09:06, Martin Batholdy <batho...@googlemail.com> wrote: > Hi, > > I wanted to use the predict.lm() function to compare the empirical data with > the predicted values. > The problem is that I have NAs in my data. > > I wanted to cbind my data.frame with the empirical values with the vector I > get from predict.lm. > But they don't have the same length because predict.lm just skip > NA-predictions. > > Is there a way to get a vector with predicted values of the same length as > the empirical values (with NAs)? > > > thanks! > > ______________________________________________ > 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. > -- Wincent Rong-gui HUANG Doctoral Candidate Dept of Public and Social Administration City University of Hong Kong http://asrr.r-forge.r-project.org/rghuang.html ______________________________________________ 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.
