You need to use na.action=na.exclude, _and_ to use the proper extractor function residuals() rather than pick up a component of the fitted object by partial matching.
See ?residuals.lm and ?naresid On Mon, 3 Dec 2007, rem la wrote: > Dear All, > > I have two vectors: > > tt = c(6.87, 7.43, 6.4, 4.5, 5.5, 5.87, NA, NA, NA, 7.7) > year = 1966:1975 > > Residuals > > lm(tt~year)$res > > do not contain NAs for the three years of missing temperature tt. Is there a > simple way to get these NAs back into the residual's vector? > > Thank you, > Sorama -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ 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.