[R] pmatch questions
Uwe Ligges
ligges at statistik.uni-dortmund.de
Thu Oct 2 11:27:09 CEST 2003
Vito Muggeo wrote:
> Dear all,
> Below there are two, simple - I suppose, questions on using pmatch():
>
>
>>pmatch("xx", c("cc","xxa"))
>
> [1] 2
>
>>pmatch("a", c("cc","xxa"))
>
> [1] NA
>
>>pmatch("xx", c("cc","xxa","xxb"))
>
> [1] NA
>
> I would like that the second call returns also 2, and the third call returns
> c(2,3)
> is it possible?
You are looking for grep().
Uwe Ligges
> many thanks
> vito
>
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