Hi Martin,
I assume you want to check whether a particular character string
contains a digit. In this case you should use the following pattern:
"[[:digit:]]" instead of "[:digit:]".
From ?regex:
"A character class is a list of characters enclosed between [ and ]
which matches any single cha
I think you want "[[:digit:]]" instead of "[:digit:]"
--Ista
On Mon, Jul 2, 2018 at 8:52 AM, Martin Møller Skarbiniks Pedersen
wrote:
> Hi,
>
>Have I found a bug in R? Or misunderstood something about grep() ?
>
>Case 1 gives the expected output
>Case 2 does not gives the expected ou
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