R help - Dec 2012 - remove from column a group of elements I have in another vector

Hi,
 
I have a data frame and I would need to remove from one of
the columns a group of elements I have in another vector. How can I do that? I
know how to do it with criteria but i would need to do it in a more automatic
way....
In SQL I would use  where
---- not in ----

Thank you,
Estefania
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You can probably do it with not in in R too:
for a data frame x where you want to remove rows where values in
column A are not in the vector y:

x[!(x$A %in% y), ]

If you'd provided a reproducible example, I could give code that works
in your particular circumstance.

Sarah

On Fri, Dec 21, 2012 at 12:43 PM, Estefan?a G?mez Galimberti
<tefagg at yahoo.com> wrote:
> Hi,
>
> I have a data frame and I would need to remove from one of
> the columns a group of elements I have in another vector. How can I do
that? I know how to do it with criteria but i would need to do it in a more
automatic way....
> In SQL I would use  where
> ---- not in ----
>
> Thank you,
> Estefania
--
Sarah Goslee
http://www.functionaldiversity.org