Numerical vs. Polynomial attributes

nicugeorgiannicugeorgian Member Posts: 31 Maven
edited November 2018 in Help

In the table embedded in my DatabaseExampleSource operator, I have an attribute whose integer values range from 0 to 500.

This attribute is read as nominal by the DatabaseExampleSource operator and not as numerical.

Is there a way to change this? I would like that attribute to be treated as numerical?

Or is there no difference for attributes like mine, whose the range is a finite set of integers?



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    IngoRMIngoRM Administrator, Moderator, Employee, RapidMiner Certified Analyst, RapidMiner Certified Expert, Community Manager, RMResearcher, Member, University Professor Posts: 1,751 RM Founder
    Hi Geo,

    I would have to see the schema in order to get an idea why the operator did not recognize the numerical column correctly. However, there is a simple solution for those cases: just apply either the operator "GuessValueTypes" or "NominalNumbers2Numeric" in order to transform these wrongly recognized columns. You can also restrict these operators by using the "AttributeSubsetPreprocessing" operator if necessary.

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    nicugeorgiannicugeorgian Member Posts: 31 Maven
    Thanks Ingo! It worked.  :)
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