[R] Selecting columns of a table (not consecutive)

[Peter Dalgaard]

Nolwenn LeMeur <nlemeur at fhcrc.org> writes:

> George Papayiannis wrote:
> 
> >Hi everyone,
> >
> >I have a table with 10 columns and many rows.
> >I want to select the 3rd,4th and 10th column.
> >
> >If I wanted to select the 3rd and 4th it would be no
> >problem.
> >
> >q3[ ,(3:4)]
> >
> >but how do I select the 10th along with it?
> >

> Try
>  subset(q3, select=c(3,4,10))

Yes, but q3[,c(3:4,10)] works too. Notice that the index can be an
arbitrary numeric vector.

-- 
   O__  ---- Peter Dalgaard             Øster Farimagsgade 5, Entr.B
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