[R] union of two data frames

[stephen sefick]

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

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
>  >
>



-- 
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annoying little problems of being mammals.

								-K. Mullis