strapply in the gsubfn package matches a regular expression and passes
each back reference as a separate argument to the indicated function,
in this case paste. Any number of back references may be used. Here
is an example where there are more than 9:
> # pass each back reference in regular expression to function
> # returning function's output
> library(gsubfn)
> strapply("abcdefghijklmnop", "(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)", paste)
[[1]]
[1] "a b c d e f g h i j"
See home page at: http://gsubfn.googlecode.com
On Sat, Oct 3, 2009 at 2:17 AM, Henrik Bengtsson <h...@stat.berkeley.edu> wrote:
> Hi,
>
> I'm running out of the *numbered* backreferences \\1, \\2, ..., \\9
> for gsub(). Does R support *named* backreferences, and if so, what is
> the syntax?
>
> Thanks
>
> Henrik
>
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>
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