Problem with Random Forest Learner (Regression): flow variable for minimum child and node size (K...

Hi!

I’m relatively new in Knime. I am trying to optimize the parameter “minimum node size” of the Random Forest Learner (Regression) node using flow variables and a parameter optimization loop. When I configure the flow variables of the RFL an error appears with the message “errors loading flow variables into node: Invalid minimum child size (2); must be at most 2 x minimum node size (2)” which obviously 2 < 2x2, so at least the message error is incorrect.

Thanks in advance

David