If you have to deal with missing values, you might be interested in na.omit(). ?na.omit
Regards, Christoph -------------------------------------------------------------- Christoph Buser <[EMAIL PROTECTED]> Seminar fuer Statistik, LEO C13 ETH (Federal Inst. Technology) 8092 Zurich SWITZERLAND phone: x-41-44-632-4673 fax: 632-1228 http://stat.ethz.ch/~buser/ -------------------------------------------------------------- NATALIA F TCHETCHERINA writes: > Hello all, > I have data: > > Genes time rep vart dye y trt > 130911 sa1-d07 030min 1 col g 9.636244 o > 145771 sa1-d07 030min 1 col r 8.107577 c > 93335 sa1-d07 030min 1 ler g 7.409566 o > 94821 sa1-d07 030min 1 ler r 5.107160 c > 10119101 sa1-d07 030min 2 col g 8.336862 o > 11605101 sa1-d07 030min 2 col r 7.824530 c > 725313 sa1-d07 030min 2 ler g 8.249347 o > 740171 sa1-d07 030min 2 ler r 7.565084 c > 1160522 sa1-d07 030min 3 col g NA c > 1011922 sa1-d07 030min 3 col r NA o > 562232 sa1-d07 030min 3 ler g 9.974227 c > 547362 sa1-d07 030min 3 ler r 10.341149 o > .................................................. > .................................................. > .................................................. > > I would like to get graphs means for two-way factor combinations > I used Rlab package: > > mplot(data$y[which(data$Genes==sa1-d07)], > data$time[which(data$Genes==sa1-d07)], data$trt[which(data$Genes==sa1-d07)]) > > However, I have the following error message: > > plot window will lay out plots in a 3 by 1 matrix > Error in plot.window(xlim, ylim, log, asp, ...) : > need finite 'ylim' values > In addition: Warning messages: > 1: no finite arguments to min; returning Inf > 2: no finite arguments to max; returning -Inf > > > I think this is because of some y='NA'. > My question is: how I can deal with this problem? > > Sincerely, Natalia. > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html