[R] Query about using setdiff

[lalitha viswanath]

Hi
I have two dataframes
names(DF1) = c("id", "val1", "val2");

names(DF2) = c("id2");

Ids in DF2 are a complete subset of those in DF1

How can I extract entries from DF1 where id NOT IN
DF2.

I tried setdiff(DF1, DF2); setdiff(DF1$id, DF2$id),
etc.
Although the latter eliminates the ids as required, I
dont know how to extract val1 and val2 for the
resultant set.


Thanks
Lalitha 


 
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