[datatable-help] A[B]?

[Michael Smith]

FAQ 1.12?


On 05/06/2014 05:57 PM, Rguy wrote:
> That FAQ does not provide any examples of the A[B] syntax used with data
> table objects. It does provide an example using A[B] with matrix objects,
> but the example does not translate to data table objects, so I'm not sure
> why it's there. I suggest that the FAQ be extended to provide one, or better
> yet several, examples of the A[B] syntax applied to data.table objects.
> 
> As far as I have been able to puzzle out so far, A[B] is just another way to
> do a merge.
> 
> 
> 
> 
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