On Fri, Jul 10, 2009 at 7:44 PM, milton ruser<milton.ru...@gmail.com> wrote:
> 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
>> and provide commented, minimal, self-contained, reproducible code.
>
>
Precisely what I was looking for. The PosType values (1 and -1) where
in different data.frames and bound together. Now they are sorted and
intermingled as I was looking for.
The order command. Thanks!
Cheers,
Mark
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
4111 1 -1 1040127 1009 1040127 1301 104
412 2 -1 1040129 941 1040129 1301 -396
6 6 1 1040205 1043 1040205 1300 -196
7 7 1 1040211 1054 1040211 1300 14
413 3 -1 1040212 948 1040212 1301 154
8 8 1 1040217 909 1040217 1300 84
9 9 1 1040218 931 1040218 1125 -576
414 4 -1 1040219 1027 1040219 1301 824
10 10 1 1040225 1137 1040225 1300 214
11 11 1 1040226 935 1040226 1300 -36
415 5 -1 1040302 955 1040302 1301 114
12 12 1 1040303 1006 1040303 1300
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