hi dear R users, I'm a newbie with R and excuse me if my question is stupid ... but i've read lot of documentation and I don't know how to do.
I have a dataset like x y var1 var2 2 4 10 50 3 3 20 70 3 2 50 68 4 5 34 42 5 3 10 23 7 8 23 42 7 3 23 34 [...] And I need to produce grids like : y\x ]0-2] ]2-4] ]4-6] ]6-8] ]0-3] ]3-6] means of corresponding values for var1 (or var2) ]6-9] but I don't find any example .... in advance, lot of thanks for your help js _____________________________________________________________________________ ______________________________________________ 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 and provide commented, minimal, self-contained, reproducible code.