id3

代码说明：

  使用id3决策树建立学生信息管理系统，对学生成绩按照籍贯、院系、科目等分类成不及格、及格、良好、优秀(Id3 decision tree with the establishment of student information management system, according to origin of student achievement, faculty, courses, etc. and to not pass, pass, good, excellent)

文件列表：

id3决策树
.........\ID3Tree.m,7976,2010-12-10
.........\orig_abalone_test.txt,16416,2010-12-10
.........\orig_abalone_train.txt,62947,2010-12-10
.........\trans_data.m,3321,2010-12-10
.........\usecase.m,530,2010-12-10