Hi mentor_,

Try

c(sapply(vec[-1], function(x) c(vec[1], x)))
# [1]  2  4  2  6  2  9  2 10

HTH,
Jorge.-


On Sun, Feb 12, 2012 at 12:54 PM, syrvn <> wrote:

> Hello,
>
>
> I am stuck with the following problem. Consider the vector:
>
> vec <- c(2,4,6,9,10)
>
> I now want to use R to manipulate the vector as follows:
>
> [1] 2, 4, 2, 6, 2, 9, 2, 10
>
> In words, the first element of the vector should be placed in front of each
> following number.
>
> Which R commands do I need to achieve that?
>
>
> Cheers
>
> --
> View this message in context:
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> Sent from the R help mailing list archive at Nabble.com.
>
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