Can't we use gain ratio on random forest for numerical attributes?

ed1305
ed1305 New Altair Community Member
edited November 5 in Community Q&A
my input to the random forest are all attributes of valuetype "real".I want to use gain ratio criteria here but it gives the followin error:
"Only least_square criterion can be used for numeric labels"
how to solve this??
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Answers

  • hughesfleming68
    hughesfleming68 New Altair Community Member
    edited March 2019
    You can use the the selector to chose least square as the criterion. Your random forest will the work on numeric data. It is the last one in the list and the only one that works.

    regards,

    Alex
  • varunm1
    varunm1 New Altair Community Member
    HI @ed1305

    Gain ratio doesn't work on numerical attributes if base is J48. The base algorithm used is J48(java implementation of C4.5) in Rapidminer if you select gain ratio. So as @hughesfleming68 said you can select only least square for numeric attributes. If you want to use gain ration you can change the type of attribute if possible. 

    Correct me if I am wrong

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