Never used coplot, but why not try removing the rows with missing variables? Perhaps with:
dat <- cbind(E2=resid(baea.ancova6, type = "normalized"), year, population) coplot(E2~year|population, data=dat[apply(dat, 1, function(x) !any(is.na (x))),]) Regards, Simon Knapp On Mon, Jan 18, 2010 at 6:54 AM, LisaB <lisaba...@hotmail.com> wrote: > > Hello - I'm trying to construct a coplot to check the residuals conditioned > on a factor using the following formula, however I keep getting an error > message. I've used the same formula for another data set and it worked > fine > - the only difference is that now I have missing values for each level (2 > levels) of the factor. Is this the problem and how can I fix it. Thank > you. > > > E2 <- resid(baea.ancova6, type = "normalized") > > coplot(E2~year|population) > Error in bad.lengths() : incompatible variable lengths > > -- > View this message in context: > http://n4.nabble.com/coplots-with-missing-values-tp1016157p1016157.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. > [[alternative HTML version deleted]] ______________________________________________ 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.