[R] how to replace the second "-"

[Gabor Grothendieck]

Try this:

sub("(-[^-]*)-", "\\10", c("1-1-1", "1-1-2", "1-2-1"))


On 10/19/06, ronggui <ronggui.huang at gmail.com> wrote:
> I have a string vector like these:
> [1] "1-1-1" "1-1-2" "1-2-1"
>
> And I wanna replace the second "-" with "0", that is, I wanna get the result
> like: [1] "1-101" "1-102" "1-201".
>
> How should I write the Regular Expressions? Thanks!
>
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> »ÆÈÙ¹ó
> Department of Sociology
> Fudan University
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