[R] Problem merging data frames and duplicates

[Frank Burbrink]

Thanks Bill,

However, unique(merge(x, y, by = 1, all=T)) is giving me:

   state locus.x locus.y
1     AR       5       2
2     AR       5       3
3     AR       6       2
4     AR       6       3
5     IL       1       1
9     LA       2      NA
11    MS       3      NA
12    MS       4      NA
13    TN      NA       3
14    TN      NA       4

This has AR repeated twice and the normal double IL and LA now only listed
singly.

What I am hoping for is something like this:

   state locus.x locus.y
1     AR       5       2
4     AR       6       3
7     IL       1       1
8     IL       1       1
9     LA       2      NA
10    LA       2      NA
11    MS       3      NA
12    MS       4      NA
13    TN      NA       3
14    TN      NA       4

On Wed, May 27, 2015 at 3:53 AM, William Michels <wjm1 at caa.columbia.edu>
wrote:

> Hi Frank,
>
> It looks like you're very close. I think you want:
>
> unique(merge(x, y, by = 1, all=T))
>
> Gabor Grothendieck's sqldf package is very useful if you're more
> comfortable with SQL-type syntax, see:
>
> https://github.com/ggrothendieck/sqldf
>
> Best Regards,
>
> William (Bill) Michels, Ph.D.
>
>
>
> On Tue, May 26, 2015 at 5:12 PM, Frank Burbrink
> <burbrink666 at gmail.com> wrote: <SNIP>
>



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