Thanks, theducks.
I tried it, but it didn't work. I get an error "could not convert string to float". I think it's because the REGEX values. ¿?
Edit: Sorry, my mistake. It works. The error I got was because I was selecting some books without any value at the original column. When I select only books with any value at the old column, it works perfectly.
Thanks again, theducks.
Last edited by Pepin33; 08-19-2012 at 07:26 AM.
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