rmx represent prm that trained on (no required for terminal) node pair under same parent node.

  rm3 has the best overall test set accuracy
  
  rm4.5 and rm6 have higher accuracy on shallow depth and relative good accuracy on overall test set
  
rm2-x represent orm that trained on terminal node pair (no required for same parent node).

  rm2-9.5 has the best overall test set accuracy
  
  rm2-2, rm2-9, rm2-2.5 have relative good accuracy on overall test set
  
rm3-x represent prm that trained on (no required for terminal) node pair (no required for same parent node).

  rm3-5 has the best overall test set accuracy

  rm3-2, rm3-8, rm3-2.5 have relative  good accuracy on overall test set