We will need a reproducible example! Please give us R commands that display the behavior you're observing:
For example, I am having trouble understanding the as.Date function. When I input 39939, I would like to get "06.05.2009", but when I try it, I get > as.Date(39939) Error in as.Date.numeric(39939) : 'origin' must be supplied I looked up what origin Excel uses for its' dates, and it seems like it might be January 1, 1900, so I tried as.Date(39939, origin = "1900-01-01") [1] "2009-05-08" Then we will much better be able to help you, because we will be able to paste your commands into R and see the results and make changes. But this still seems to be off by two days. So did you really mean "06.05", or "08.05"? -----Original Message----- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of swertie Sent: Tuesday, September 01, 2009 12:59 PM To: r-help@r-project.org Subject: [R] Date format in plot Hello, I plot the abundance of a species in relation to the date. To have the date as a continous variable I put it in the format "standard" in excel (f.ex. 39939 means 06.05.2009). R uses 39939 on the x axis, but I would like to have "06.05". I tried to use as.Date as suggested in some discussion but I don't manage to use it, the returned date is not correct. Do you have any clue? thank you ______________________________________________ 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.
