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i have a Data set which got lines looking like the following:
41, Private, 109912, Bachelors, 13, Never-married, Other-service, Not-in-family, White, Female, 0, 0, 40, ?, <=50K
From time to time there is a '?' . I wanted to replace it but RapidMiner didnt recognize it as a charakter.
I used the Replace-Operator and wrote in "replace what" a 'any character'- character from the regular expressions suggestions window. All other charaters were replaced but not the '?'.
Now i wanted to know if that is because of a bug or did i smth wrong ?