I want to obtain datetime differences in mins in an other column, in front of my datetimes. I have tried this :
T1 <- c("12/31/03 23:49","1/1/04 1:14","1/1/04 0:02") T2 <- c("1/1/04 0:58","1/1/04 1:16","") toto <- data.frame(T1,T2) toto y <- strptime(T1,"%m/%d/%y %H:%M") x <- strptime(T2,"%m/%d/%y %H:%M") difftime(x,y) but, i don't know how can i do in order to obtain something like this : ans <- c(69,2,NA) res <- data.frame(T1,T2,ans) res what is to be done ? Thanks. Florent Bonneu Laboratoire de Statistique et Probabilités bureau 148 bât. 1R2 Université Toulouse 3 118 route de Narbonne - 31062 Toulouse cedex 9 [EMAIL PROTECTED] ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html