Hi, I've been playing with: > joinDate <- format(strptime(as.vector(forum[,2]), "%d-%b-%y"), + "%d-%b-%Y") > today <- format(strptime(as.vector("14-Jun-04"), "%d-%b-%Y"), + "%d-%b-%Y") > joinDate [1] "04-Feb-2004" "13-Feb-2004" "26-Feb-2004" "27-Feb-2004" "27-Feb-2004" [6] "27-Feb-2004" "29-Feb-2004" "01-Mar-2004" "02-Mar-2004" "07-Mar-2004" [11] "08-Mar-2004" "17-Mar-2004" "20-Mar-2004" "22-Mar-2004" "22-Mar-2004" [16] "23-Mar-2004" "23-Mar-2004" "24-Mar-2004" "01-Apr-2004" "01-Apr-2004" [21] "01-Apr-2004" "01-Apr-2004" "02-Apr-2004" "06-Apr-2004" "09-Apr-2004" [26] "11-Apr-2004" "14-Apr-2004" "03-May-2004" "04-May-2004" "30-May-2004" [31] "01-Jun-2004" "10-Jun-2004" "14-Jun-2004" "17-Jun-2004" "17-Jun-2004" > today [1] "14-Jun-0004" > joinDate - today Error in joinDate - today : non-numeric argument to binary operator
But it didn't quite work. What I'd like joinDate - today to return is the number of days to today, since joinDate. I'm sure it has been asked before however a search on r-help didn't found me any relevant information *_*. Cheers, Kevin -------------------------------------------- Ko-Kang Kevin Wang, MSc(Hon) SLC Stats Workshops Co-ordinator The University of Auckland New Zealand ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html