Re: [R] Retrieving locations of element of a vector or matrix

From: Henrique Dallazuanna <wwwhsd_at_gmail.com>
Date: Mon, 31 Mar 2008 11:30:01 -0300

For the position use order indeed of sort

On 31/03/2008, Henrique Dallazuanna <wwwhsd_at_gmail.com> wrote:
> I think that you can use:
>
> x <- sample(1:20, 10)
> head(sort(x), 5) #First 5 minimum values
> head(sort(x, decreasing = TRUE), 5) #First 5 maximum values
>
>
> On 31/03/2008, Yemi Oyeyemi <gmoyeyemi_at_yahoo.com> wrote:
> > Hello all,
> > I have a problem of getting the locations of elements in a vector or matrix. I know one can use the command "which.min" or which.max" to get the location of minimum or maximum values in a vector. But is there any command to get the first k minimum values or maximum values in a vector.
> > Thanks
> >
> >
> > ---------------------------------
> > You rock. That's why Blockbuster's offering you one month of Blockbuster Total Access, No Cost.
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> >
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> >
>
>
>
> --
> Henrique Dallazuanna
> Curitiba-Paraná-Brasil
> 25° 25' 40" S 49° 16' 22" O
>

-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O

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Received on Mon 31 Mar 2008 - 14:49:48 GMT

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