Hi,
I am simply looking for the function that will allow you to look at the top
20 lines of a long dataset?

LP


On Mon, Nov 1, 2010 at 10:46 AM, Louis Plough <lplough@usc.edu> wrote:

> Hi,
> I am trying to generate all possible permutations (choose 2) of a vector,
> b, for example--using 'combn' the combinations in only one direction are
> generated...
>
> > b<-c(.1,.2,.3)
> > combn(b,2)
>      [,1] [,2] [,3]
> [1,]  0.1  0.1  0.2
> [2,]  0.2  0.3  0.3
>
>                         [1,] 0.1  0.2  0.3  0.2  0.3  0.3        These
> should also be there.
>                         [2,] 0.1  0.2  0.3  0.1  0.1  0.2
>
> Is there another R function that can do this??
>
> Thanks,
> Louis
>

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