Hi Mark, Like this?
mydf<-read.table(stdin(), head=T) Trade PosType EnDate EnTime ExDate ExTime PL_Pos 1 1 1040107 915 1040107 1300 164 2 1 1040108 909 1040108 1300 184 3 1 1040115 921 1040115 1300 64 4 1 1040120 1134 1040120 1300 124 5 1 1040121 923 1040121 1300 84 6 1 1040205 1043 1040205 1300 -196 mydf.sort<-mydf[order(mydf$EnDate),] mydf.sort Cheers milton brazil=toronto On Fri, Jul 10, 2009 at 10:30 PM, Mark Knecht <markkne...@gmail.com> wrote: > I have a data.frame that was built from a number of smaller > data.frames with rbind. Each ssmaller data.frame bound together runs > over the same date ranges. The format of the whole thing looks like > this: > > Trade PosType EnDate EnTime ExDate ExTime PL_Pos > 1 1 1 1040107 915 1040107 1300 164 > 2 2 1 1040108 909 1040108 1300 184 > 3 3 1 1040115 921 1040115 1300 64 > 4 4 1 1040120 1134 1040120 1300 124 > 5 5 1 1040121 923 1040121 1300 84 > 6 6 1 1040205 1043 1040205 1300 -196 > > I would like to sort the new data.frame using column 3, EnDate from > lowest to highest. How do I do this? > > The help file example section for ?sort doesn't seem to have any > examples of doing this by column so I'm wondering if this is the done > with some other command I haven't discovered, or am I just missing the > obvious at 7:30PM on a Friday night? > > Thanks, > Mark > > ______________________________________________ > 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<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 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.
