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DB Index Values Negative

rinintariririnintariri Member Posts: 1 Newbie
edited March 2020 in Help
Hi, i want to ask this question. I have segmentation performance of DB Index in negative values. why is it negative? How is the calculation of DB Index?. and which one is better -0.8 or -1.3 ? Thankyou
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    MartinLiebigMartinLiebig Administrator, Moderator, Employee, RapidMiner Certified Analyst, RapidMiner Certified Expert, University Professor Posts: 3,517 RM Data Scientist
    hi @rinitairi,

    by convention those measures need to be maximized. In order that this is true, we multiplied it by -1. So -0.8 is better than -1.3

    Best,
    Martin
    - Sr. Director Data Solutions, Altair RapidMiner -
    Dortmund, Germany
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