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 <markknecht@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]]


