Hi, Is there a simple way of doing the following in R?
a <- data.frame(name = c(rep("A", 3), rep("B", 5), rep("C", 10))) > a name 1 A 2 A 3 A 4 B 5 B 6 B 7 B 8 B 9 C 10 C 11 C 12 C 13 C 14 C 15 C 16 C 17 C 18 C Do some fancy R code here: > a name val 1 A 1 2 A 2 3 A 3 4 B 1 5 B 2 6 B 3 7 B 4 8 B 5 9 C 1 10 C 2 11 C 3 12 C 4 13 C 5 14 C 6 15 C 7 16 C 8 17 C 9 18 C 10 -- View this message in context: http://r.789695.n4.nabble.com/Add-number-series-to-data-frame-tp4450495p4450495.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.