[R] splitting a string / finding a numeric value within a string

[Gabor Grothendieck]

The first one replaces non-numerics with the empty string
and the second one returns numerics directly:

gsub("[^0-9]", "", "test_01.log")

# or
library(gsubfn)
strapply("test_01.log", "[0-9]+")[[1]]

On Fri, Jan 16, 2009 at 11:00 PM, Jörg Groß <joerg at licht-malerei.de> wrote:
> Hi,
>
> I have this variable;
>
>
> x <- c("test_01.log")
>
>
> and I want to extract the number (01) out of the variable.
> So that I get;
>
>  > x
> [1] 1
>
>
>
> I tried strsplit, but I don't know how to refer to the result.
>
> Can someone help me with that?
>        [[alternative HTML version deleted]]
>
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