Hi Jim,
Take a look at ?"%in%", especially its first example.
HTH,
Jorge
On Tue, Nov 3, 2009 at 5:02 PM, jimdare <> wrote:
>
> Hi,
>
> I have a dataset called 'fish'. fish$Species returns extract 1. When I
> use
> fish$Species != c("CRA","PHC"), i.e. I want all species except "CRA" and
> "PH
Hi,
I have a dataset called 'fish'. fish$Species returns extract 1. When I use
fish$Species != c("CRA","PHC"), i.e. I want all species except "CRA" and
"PHC", I get extract 2 which is blatantly wrong. Can anyone see what I'm
doing wrong?
Regards,
James
EXTRACT 1
> fish$Species
[1] ALB
r 2009 11:02 a.m.
> To: r-help@r-project.org
> Subject: [R] Weird operator behaviour
>
>
> Hi,
>
> I have a dataset called 'fish'. fish$Species returns extract
> 1. When I use fish$Species != c("CRA","PHC"), i.e. I want
> all species exce
are
> Sent: Tuesday, November 03, 2009 4:02 PM
> To: r-help@r-project.org
> Subject: [R] Weird operator behaviour
>
>
> Hi,
>
> I have a dataset called 'fish'. fish$Species returns extract 1. When I
> use
> fish$Species != c("CRA","PHC&quo
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