find_best_split   822 apps/traincascade/old_ml.hpp     virtual CvDTreeSplit* find_best_split( CvDTreeNode* n );
find_best_split   897 apps/traincascade/old_ml.hpp     virtual CvDTreeSplit* find_best_split( CvDTreeNode* n );
find_best_split  1713 apps/traincascade/old_ml_tree.cpp         best_split = find_best_split(node);