[R] union of two data frames
AA
aa2007r at gmail.com
Tue Feb 26 00:14:15 CET 2008
There is a merge function in the "zoo" package that deals with time series.
There have been couple of threats about it recently. Do a search.
Specially look for solutions proposed by Gabor Grothendieck regarding merge
in
those threats. (It was very helpful for me Tnx to Gabor).
you could begin by ?merge.zoo
Good Luck.
AA.
----- Original Message -----
From: "stephen sefick" <ssefick at gmail.com>
To: "Erik Iverson" <iverson at biostat.wisc.edu>; <r-help at r-project.org>
Sent: Monday, February 25, 2008 5:37 PM
Subject: Re: [R] union of two data frames
> On Mon, Feb 25, 2008 at 5:35 PM, stephen sefick <ssefick at gmail.com> wrote:
>> DateTime var1 var2 var3 var4 var5 var6
>> . . . . . . .
>> . . . . . . .
>> . . . . . . .
>> 1/5/06 1 2 3 4 5 6
>> 1/6/06 1 2 3 4 5 6
>> 1/7/06 3 4 5 6 7 8
>> 1/8/06 4 5 6 7 8 9
>>
>>
>>
>> DateTime var1 var2 var3 var4 var5 var6
>> 1/5/06 1 2 3 4 5 6
>> 1/6/06 1 2 3 4 5 6
>> 1/7/06 3 4 5 6 7 8
>> 1/8/06 4 5 6 7 8 9
>> . . . . . . .
>> . . . . . . .
>> . . . . . . .
>>
>>
>> I would like to combine two data frames similar to these
>
> into this
> DateTime var1 var2 var3 var4 var5 var6
>> . . . . . . .
>> . . . . . . .
>> . . . . . . .
>> 1/5/06 1 2 3 4 5 6
>> 1/6/06 1 2 3 4 5 6
>> 1/7/06 3 4 5 6 7 8
>> 1/8/06 4 5 6 7 8 9
>> . . . . . . .
>> . . . . . . .
>> . . . . . . .
>>
>>
>> On Mon, Feb 25, 2008 at 5:08 PM, Erik Iverson <iverson at biostat.wisc.edu>
>> wrote:
>> > You probably need to provide an example here, show us your data.frame
>> > column names, and what you mean by 'common subset of the same data'
>> at
>> > least. What did you try and what did it do that you didn't expect?
>> >
>> >
>> >
>> > stephen sefick wrote:
>> > > I have a thirty thousand row data frame imported from excel and a
>> > > 60,000 row data frame imported from excel. they share a common
>> subset
>> > > of the same data and I would like to combine the two into one data
>> > > frame merged together on the data in common. I have looked at the
>> > > help file for merge and intersect and cbind and rbind etc... And I
>> > > can't figure it out. Thanks in advance
>> > >
>> > > Stephen
>> > >
>> >
>>
>>
>>
>>
>>
>> --
>> Let's not spend our time and resources thinking about things that are
>> so little or so large that all they really do for us is puff us up and
>> make us feel like gods. We are mammals, and have not exhausted the
>> annoying little problems of being mammals.
>>
>> -K.
>> Mullis
>>
>
>
>
> --
> Let's not spend our time and resources thinking about things that are
> so little or so large that all they really do for us is puff us up and
> make us feel like gods. We are mammals, and have not exhausted the
> annoying little problems of being mammals.
>
> -K. Mullis
>
> ______________________________________________
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