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

ed1305ed1305 Member Posts: 8 Contributor I
edited March 2019 in Help
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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    hughesfleming68hughesfleming68 Member Posts: 323 Unicorn
    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.


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    varunm1varunm1 Moderator, Member Posts: 1,207 Unicorn
    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

    Be Safe. Follow precautions and Maintain Social Distancing

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