[R] Newbie question

(Ted Harding) Ted.Harding at manchester.ac.uk
Tue Mar 25 23:55:42 CET 2008


Try ?merge

Ted.

On 25-Mar-08 22:32:29, Kris Ghosh wrote:
> I have 2 tables,T1 and T2. There are 4 columns of T1 and 2 columns of
> T2
> T2
> 
> 1. 990334.  G000021
> 2. 844047.  G000025
> 3. 281739.  G000037
> 4  280903.  G002615
> 5  418546.  G004657
> 
> The data in T1
>   V1            V2        V3      V4
> 1   T00015          AFP1 human G004657
> 2   T00035    AP-2alphaA human G002615
> 3   T00036          AP-4 human G003918
> 4   T00040            AR human G004953
> 5   T00045      COUP-TF2 human G004656
> 
> 
> I want to construct T3 that has all the columns of T1 and T2 with the
> common
> GOO$$$$  (common elements of column 4 of T1 and column 2 of T2.). I
> used
> "match" but it did not work.
> 
> T3 should look like where  G002615 and G004657 are common.
> 
> T00015   AFP1        human G004657 418546.
> T00035   AP-2alphaA  human G002615 280903.
> 
> any help would be appreciated.
> 
>       [[alternative HTML version deleted]]
> 
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> and provide commented, minimal, self-contained, reproducible code.

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Date: 25-Mar-08                                       Time: 22:55:39
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