x<-data.frame(id=c(1,1,2,2,3,3,4,4), v1=c(1:8), V2=c(9:16)) > x id v1 V2 1 1 1 9 2 1 2 10 3 2 3 11 4 2 4 12 5 3 5 13 6 3 6 14 7 4 7 15 8 4 8 16
1) I want to split the data into 2 group with one unique ID. I should use the split function but i don't know how to write it out. 2) I tried to random select the one unique case so I have one group. id v1 V2 2 1 2 10 4 2 4 12 6 3 6 14 7 4 7 15 How to get the rest of data in other group? -- View this message in context: http://r.789695.n4.nabble.com/split-the-data-tp3321985p3321985.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.
