hi, the sas universal viewer might be a free, non-R way to convert a sas7bdat file to non-proprietary formats, not sure if it's windows-only. those other formats should be easier to import only a subset of columns into R..
https://support.sas.com/downloads/browse.htm?fil=&cat=74 On Thu, Aug 10, 2017 at 7:42 AM, peter dalgaard <pda...@gmail.com> wrote: > I had a look at this a while back and it didn't seem to be easy. The path > of least resistance would seem to be to use SAS itself to create a data set > with fewer columns, but of course that requires you to get access to SAS. > > Otherwise, I think you'd have to modify sas7bdat::read.sas7bdat to drop > unselected columns. That function is pure R code, so it might not be quite > as hard as it sounds. > > Incidentally, do teach your mailer to not send plain text. It is not much > of a problem this time, but HTML mails can become quite unreadable on the > list. > > > -pd > > > > On 10 Aug 2017, at 12:24 , Utkarsh Singhal <utkarsh....@gmail.com> > wrote: > > > > Hello everyone, > > > > I want to import data from huge sas files with 100s of columns. The good > > thing is that I am only interested in a few selected columns. Is there > any > > way to do that without loading the full dataset. > > > > I have tried two functions: (1) read.sas7bdat *[from library > 'sas7bdat']*, > > and (2) read_sas *[from library 'haven']. *But couldn't find what I am > > looking for. > > > > Best regards, > > Utkarsh Singhal > > 91.96508.54333 > > > > [[alternative HTML version deleted]] > > > > ______________________________________________ > > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > > 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 > Office: A 4.23 > Email: pd....@cbs.dk Priv: pda...@gmail.com > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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. > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
