Hi Agustin, You can check and adapt this solution to your needs:
http://stackoverflow.com/questions/9465817/count-days-per-year Regards, Carlos Ortega www.qualityexcellence.es 2012/6/8 Agustin Lobo <agustin.l...@ictja.csic.es> > Hi! > Is not there an standard R function to retrieve the day of the year > (since 1st Jan of the same year)? > I know I can make my own using julian, but find it weird that having > days(), months() etc doy() does not exist as an standard function. > > Also, is the following not a bit inconsistent? > > > a <- chron("20100506",format="ymd") > > a > [1] 100506 > > years(a) > [1] 2010 > Levels: 2010 > > but instead have to cast to Date to apply julian: > > julian(a) > Error in names(d) : 'd' is missing > > julian(as.Date(a)) > [1] 14735 > attr(,"origin") > [1] "1970-01-01" > > Thanks > > Agus > > -- > -- > Dr. Agustin Lobo > Institut de Ciencies de la Terra "Jaume Almera" (CSIC) > Lluis Sole Sabaris s/n > 08028 Barcelona > Spain > Tel. 34 934095410 > Fax. 34 934110012 > e-mail agustin.l...@ictja.csic.es > https://sites.google.com/site/aloboaleu/ > > ______________________________________________ > 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. > -- Saludos, Carlos Ortega www.qualityexcellence.es [[alternative HTML version deleted]] ______________________________________________ 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.
