"Bagging regression trees: Bagging and W-M5P"

nicugeorgiannicugeorgian MemberPosts:31Guru
edited May 2019 inHelp
Hello,

我怎样才能申请baggingto the M5P algorithm, i.e., how can I use the operators Bagging and W-M5P together?

I use W-M5P to predict, by means of a regression tree, a numerical label based on polynomial and numerical attributes.

If I use W-M5P as an inner operator of the Bagging operator,








then the process complains, saying that Bagging isnot able to support numerical labels :(

Any ideas?

Thanks,
Geo
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Answers

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

    the reason why this does not work is quite simple: in the current version, bagging does not support numerical labels (regression problems) but classification tasks only. I have just changed that and numerical labels are now also supported by bagging. You can access this imrpoved version via CVS (described here:http://rapid-i.com/content/view/25/48/). Users of the RapidMiner Enterprise Edition will get this improvement with the next automatic update. And of course this change will also be part of the next release.

    Cheers,
    Ingo
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