Ooops!!! Thanks you friends for your valuable comments, Finally I found the solution for that,, Neways thanks....
-- View this message in context: http://r.789695.n4.nabble.com/How-can-I-make-a-list-using-aggregate-function-tp4634714p4634871.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.