Hi I am not at all an expert on this issue but one option could be rollapply from zoo package
rollapply(data, 5, mean, na.rm=T) and other function embed rowMeans(embed(x,5), na.rm=T) But I believe there are other options. Regards Petr r-help-boun...@r-project.org napsal dne 22.01.2010 15:01:14: > > Okay I had a look now at my matrix with clearer head than yesterday and you > are right, some columns have their own missing values that you don't find in > the other columns, I checked it yesterday many times because that was my > guess as well but didn't see anything I don't understand why, sorry! So I > converted this matrix to a time serie now. The thing is that I want to > calculate the moving average at t on a width x (so I would take the values > from t to (t - x + 1) but in the case I have Na's I want it to remain a > moving average of width x excluding the Na value and taking the value at t - > x instead. Any guess on how I could do this? I am using runmean for the > moment > -- > View this message in context: http://n4.nabble.com/Na-omit-on-matrix-does-the- > matrix-have-to-have-a-limited-size-tp1068000p1100054.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. ______________________________________________ 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.
