question about Regular Expressions - how to find punctuation

[ziqiangt]

Hi,

Does anyone know how to find punctuation instead of using [^a-zA-Z]?

Thanks in advance.

[yihaoz]

You can remove all the punctuations using "gsub('[[:punct:] ]+',' ',data)".
https://stackoverflow.com/questions/29098801/removing-punctuations-from-text-using-r

[ziqiangt]

You can remove all the punctuations using "gsub('[[:punct:] ]+',' ',data)".
https://stackoverflow.com/questions/29098801/removing-punctuations-from-text-using-r

Thanks yihao. This link is very useful!