Hi, I have the following problem: I have a list of entries with vehicles going from some places to others and the time that they need. e.g. Vehicle Start End Time 1 A B 5 2 A C 4 3 A C 3 4 B A 6 5 B C 4 6 B C 6 7 C B 2 8 C B 4 9 A B 7
What I need is a 2d table with the average time needed from Start to End, e.g. A B C A NA 6 3.5 B 6 NA 5 C NA 3 NA Any help would be very much appreciated, Sugi -- View this message in context: http://r.789695.n4.nabble.com/Create-2d-table-with-mean-of-entries-tp2966610p2966610.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.