Rado,
If you have a data.frame df like:
Col1 Col2 Col3 Col4
1 2 A B
Then you should be able to do:
df[,c("Col2","Col4")]
to get the second and fourth columns.
Sean
On 7/5/04 8:53 AM, "Rado Bonk" <[EMAIL PROTECTED]> wrote:
> Dear R users,
>
> I'm coming back to R after while. I have a data frame with 200 columns,
> each column has a name. How to extract all columns to a new dataset, but
> the specified (by names) ones?
>
> I was playing with that for a little bit using the vector syntax but got
> several syntax errors.
>
>
> Thanks,
>
> Rado
>
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