On Jan 27, 2012, at 18:58 , David Winsemius wrote: > > On Jan 27, 2012, at 10:45 AM, Fischer, Felix wrote: > >> Hi everybody, >> >> i have a csv-file, containing dates in an akward sas format, where >> 31.12.1559 is -1, 1.1.1960 is 1, 2.1.1960 is 2 and so on (see >> http://www.sfu.ca/sasdoc/sashtml/lrcon/zenid-63.htm ). Is there any function >> in R to convert this into YYYY-M-D easily? > > Seems as though as.Date should do it, assuming that's a typo for the first > date. You just need to change the default origin setting: > > > as.Date( c(-1,0,1), origin="1960-01-01") > [1] "1959-12-31" "1960-01-01" "1960-01-02" >
There are also typos for the two other dates (SAS _does_ have a date number zero). David's code is right. >> >> Best, >> Felix >> > -- > > David Winsemius, MD > West Hartford, CT > > ______________________________________________ > 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. -- Peter Dalgaard, Professor, Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Email: pd....@cbs.dk Priv: pda...@gmail.com ______________________________________________ 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.
