I have a vector of over 7,000 chron dates in the format "mm/dd/yy". I need to increment each date in the vector by a standard number of months. Lapply with seq.dates is working OK; this increments the vector x by 3 months:
dates(unlist(lapply(x, function(g) seq.dates(g, by="months", length=4)[4]))) But this takes about 55 seconds to run on a Windows XP 1.8 Pentium 512 RAM PC with R version 2.0.0 Can you recommend a more efficient way to do this? thanks for your advice Brian Winkler Controller BPS Trade Services CGI ______________________________________________ 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