[R] Merge two dataframes of different column length and row length by two columns at a time

[Philipp Pagel]

On Fri, Jul 21, 2006 at 09:33:56AM +0200, Gunther Höning wrote:
> I have two dataframes of the following structures:
[...]

> I want to merge these dataframes by V1 and V2 of a and b. The combination of
> V1, V2 is a unique key.
> Note that b is smaller than a.
> 
> Any suggestions to solve this problem ?

Use merge()

cu
	Philipp

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