"regex not working"
I'm trying to clean a dataset, and I'm working with a couple of regex. If I text the regex on the website regexpal, it works fine, but if I put the same regex to Rapidminer with the Replace Operator, it says there is a mistake.
This is one of the regex I'm testing:
When I try this one, it says it's uncorrect.
I'm correcting this in this way, adding backslashes
And it doesn't says is uncorrect, but it doesn't replace anything. The attribute is gender, so I'd like to replace for example "mm", or "male" with "M"
Thanks a lot for your help.