search for: tp17835631p17835631

...s output: id day diff 1 01-01-09 0.5 2 01-01-09 0.2 1 01-02-09 0.1 2 01-02-09 0.3 It doesn't seem extremely difficult but I'm sure there are easier ways than how I am currently approaching it! -- View this message in context: http://www.nabble.com/Subset-by-Factor-by-date-tp17835631p17835631.html Sent from the R help mailing list archive at Nabble.com.