[R] match in dependence of 2 columns

[Rui Barradas]

Hello,

You can do something like this:


join(dat1, dat2[, c("cu.nr", "name", "value")], 
by=c("cu.nr.","name"),type="right")


Hope this helps,

Rui Barradas
Em 14-02-2013 07:03, Mat escreveu:
> thank you, this code works:
>
> library(plyr)
> join(dat1,dat2,by=c("cu.nr.","name"),type="right")
>
> but my dat2 frame has a lot of columns, which i don't want to match.
> How can i say, that only the column "value" should be match to dat1 ?
>
> Thank you.
>
> Mat
>
>
>
>
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