Add changeModel to b_manage

sample/sample.cpp

@@ -219,14 +219,14 @@ int main(int argc, char** argv)
                 auto [Xtrain, ytrain] = extract_indices(train, Xd, y);
                 auto [Xtest, ytest] = extract_indices(test, Xd, y);
                 clf->fit(Xtrain, ytrain, features, className, states, smoothing);
-                std::cout << "Nodes: " << clf->getNumberOfNodes() << std::endl;
+                std::cout << "Nodes: " << clf->geb_managetNumberOfNodes() << std::endl;
                 nodes += clf->getNumberOfNodes();
                 score_train = clf->score(Xtrain, ytrain);
                 score_test = clf->score(Xtest, ytest);
             }
             if (dump_cpt) {
                 std::cout << "--- CPT Tables ---" << std::endl;
-                clf->dump_cpt();
+                std::cout << clf->dump_cpt();
             }
             total_score_train += score_train;
             total_score += score_test;