[datatable-help] join vignette for data.table

[stat quant]

I'd be happy to help.
Happy for me to have a look at it?

cheers

On Tuesday, 22 December 2015, Arunkumar Srinivasan <aragorn168b at gmail.com>
wrote:

> In the works. I’ve not yet managed to finish.
>
> require(data.table)
> A = data.table(x=1:2, y=3:4)
> B = data.table(x=2:3, y=3:4)
>
> anti-join:
>
> A[!B, on="x"] # equivalently A[!B, .SD, on="x"]
>
> semi-join:
>
> A[B, .SD, nomatch=0L, on="x"]
>
> --
> Arun
>
> On 21 December 2015 at 17:09:22, statquant3 (statquant at outlook.com
> <javascript:_e(%7B%7D,'cvml','statquant at outlook.com');>) wrote:
>
> Hello, is there a join vignette for data.table ?
> I realize that I am now more and more using dplyr just for semi_join and
> anti_join.
> Is there any plan to write those sugar function ?
> Happy to do it here and get feedback.
>
> C.
>
>
>
> --
> View this message in context:
> http://r.789695.n4.nabble.com/join-vignette-for-data-table-tp4715792.html
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