Sorry, I ll explain better. For example in the next dataset,
x<-data.frame(v_source=3,v_destine=3,dist=4) x<-rbind(x,data.frame(v_source=7,v_destine=7,dist=0)) x<-rbind(x,data.frame(v_source=6,v_destine=6,dist=0)) x<-rbind(x,data.frame(v_source=4,v_destine=4,dist=56)) x<-rbind(x,data.frame(v_source=4,v_destine=3,dist=61)) x<-rbind(x,data.frame(v_source=3,v_destine=3,dist=300)) x<-rbind(x,data.frame(v_source=3,v_destine=3,dist=27)) x<-rbind(x,data.frame(v_source=3,v_destine=3,dist=87)) x<-rbind(x,data.frame(v_source=3,v_destine=4,dist=49)) when execute this instruction gives res<-table(x$v_source,x$v_destine) 3 4 6 7 3 4 1 0 0 4 1 1 0 0 6 0 0 1 0 7 0 0 0 1 my idea is that if possible, is an array like this, but instead of having the frequency, appears the minimum or average. Appears 4 times, instead of the value displayed in the matrix 4, show the average values. In the case mean 104.5 average(4, 300,27,87). The idea was to the average value for each combination of row and column. the idea is to get something like the following matrix. 3 4 6 7 3 104.5 49 0 0 4 61 56 0 0 6 0 0 1 0 7 0 0 0 1 -- View this message in context: http://r.789695.n4.nabble.com/Average-row-and-column-tp4474524p4475146.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.