Node Connectivity
There are 176 nodes that can be used as predessesor
for a node with an input port of type 
org.knime.core.node.port.AbstractPortObject.
Simple Regression Tree Learner Modern UI
Learns a single regression tree.
Simple Regression Tree Learner Deprecated
Learns a single regression tree.
Random Forest Learner Deprecated
Learns an ensemble of decision trees (such as random forest variants).
Tree Ensemble Learner Deprecated
Learns an ensemble of decision trees (such as random forest variants).
Random Forest Learner (Regression) Deprecated
Learns an ensemble of regression trees.
Tree Ensemble Learner (Regression) Deprecated
Learns an ensemble of regression trees.
Gradient Boosted Trees Learner Modern UI
Learns a Gradient Boosted Trees model.
Gradient Boosted Trees Learner Deprecated
Learns a Gradient Boosted Trees model.
Gradient Boosted Trees Learner (Regression) Modern UI
Learns a Gradient Boosted Trees model.
Gradient Boosted Trees Learner (Regression) Deprecated
Learns a Gradient Boosted Trees model.