On Thu, 9 Oct 2014 12:30:57 PM Frederic Ntirenganya wrote: > Hi Lemon, > > I am using the code you sent. It's correct for the leap years. > What I want to do is to have both leap and no-leap years to have 366 days. > that means the 1st March is day 61 of each year. > This will help me to link it with Instat for climatic data analysis. > Are you sure that the Start and End day of year numbers haven't already been corrected for leap years? If not, you can correct both for all years like this:
Samaru$Start<-Samaru$Start - Samaru$Start > 60) Samaru$End<-Samaru$End - Samaru$End > 60) as you don't want to shift the dates before Feb 29. Jim ______________________________________________ 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.
