[R] Maximum number of patterns and speed in grep

[Gabor Grothendieck]

On Fri, Jul 13, 2012 at 9:40 AM, mdvaan <mathijsdevaan at gmail.com> wrote:
> Thanks, I see that it is working in the sample data. My data, however, gives
> me an error message:
>
> data <- strapplyc(text, batch[[l]])
> Error in structure(.External("dotTcl", ..., PACKAGE = "tcltk"), class =
> "tclObj") :
>   [tcl] couldn't compile regular expression pattern: parentheses () not
> balanced.
>
> batch[[l]] is similar to your "re" string except that there is a larger
> variety of characters. I haven't been able to figure out which characters
> are causing trouble here. Any thoughts?
>
> Thank you very much.
>
> Math
...
>
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Note part on last line about posting reproducible code.

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