机器学习的经典算法，非常利于学习机器学习这门课程。 -classical machine learning algorithm, is very conducive to learning machine learning this course.

决策树算法实现，C4.5，挺好的实现了，大家可以下载来-Cnt main(int argc, char* argv[]){ string filename = "source.txt" DecisionTree dt int attr_node = 0 TreeNode* treeHead = nullptr set<int> readLineNum vector<int> readClumNum int deep