[R] union of two data frames

[Achim Zeileis]

On Mon, 25 Feb 2008, AA wrote:

> 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.

Exactly. Threats like this: "Do a search! RTFM! Or we will kick your ass!"

But typically we try to avoid "threats" in "threads" on R-help...maybe
that is not always possible ;-)

Sorry, just kidding, couldn't resist...
Z


> 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
> >
> > ______________________________________________
> > R-help at 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.
>
> ______________________________________________
> R-help at 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.
>
>