Calculate difference between target value en predicted value

MirteMirte MemberPosts:7Contributor I
edited November 2018 inHelp

I have a model with a target variable (type real) and a predicted variable.

I need an extra attribute in the result that calculates the absolute value of the difference from the predicted score and the actual score. How do I do this?

The way I am doing it now is to save the results in an Excel file and add an extra column and then calculate the difference. But I would like to do it directly in RM.

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Best Answer

  • MartinLiebigMartinLiebig Administrator, Moderator, Employee, RapidMiner Certified Analyst, RapidMiner Certified Expert, University ProfessorPosts:3,404RM Data Scientist
    Solution Accepted

    Hi,

    the Generate Attribute operator is the operator you would like to use. The equation is something like

    [label] - [prediction(label)]

    where label is your target att.

    Cheers,

    Martin

    - Sr. Director Data Solutions, Altair RapidMiner -
    Dortmund, Germany
    sgenzer
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