How to filter string value in an attribute in RapidMiner

Question

I have an attribute called Age. Some values in the Age Attribute is not integer at all. For example, 12W, 30Lo, Giraffe. I want to filter out values that are not an integer.

Answer 1

If you have mixed values, you should use the "Parse Numbers" operator to correctly handle the integer values. This operator has a parameter unparsable value handling, set this to "replace with missing", so all non-integer values are set to missing values. Afterwards, depending on your use case, you can simply continue your workflow or filter your examples to remove the examples with a missing value in the Age column.