Metacost cost matrix optimize

HilalHilal MemberPosts:2Learner I
inHelp
Hello, I want to optimize the cost matrix parameter of the metacost operator, my process is as follows:
Dataset-Optimize Grid- Validation- Meta cost- logistic regression

However, I get an error like "the examples set empty" in the logistic regression operator. How should my process be for cost matrix optimization?

Answers

  • MartinLiebigMartinLiebig Administrator, Moderator, Employee, RapidMiner Certified Analyst, RapidMiner Certified Expert, University ProfessorPosts:3,389RM Data Scientist
    Hi,
    i would recommend to use breakpoints to figure out at what stage the examples are missing.

    Best,
    Martin
    - Head of Data Science Services at RapidMiner -
    Dortmund, Germany
  • HilalHilal MemberPosts:2Learner I
    thank u@mschmitzand How is metacost- cost matrix optimize?
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