function?[classifications]?=?ClassifyByTree（tree?attributes?instance）
%?ClassifyByTree???Classifies?data?instance?by?given?tree
%?args:
%???????tree????????????-?tree?data?structure
%???????attributes??????-?cell?array?of?attribute?strings?（no?CLASS）
%???????instance????????-?data?including?correct?classification?（end?col.）
%?return:
%???????classifications?????-?2?numbers?first?given?by?tree?2nd?given?by
%?????????????????????????????instance‘s?last?column
%?tree?struct:
%???????value???????????????-?will?be?the?string?for?the?splitting
%?????????????????????????????attribute?or?‘true‘?or?‘false‘?for?leaf
%???????left????????????????-?left?pointer?to?another?tree?node?（left?means
%?????????????????????????????the?splitting?attribute?was?false）
%???????right???????????????-?right?poin

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-11-24?10:27??Decision_tree\
?????目錄???????????0??2018-07-31?10:27??Decision_tree\ID3-Decision-Tree-master\
?????文件????????1804??2017-07-10?02:19??Decision_tree\ID3-Decision-Tree-master\ClassifyByTree.m
?????文件????????5966??2017-07-10?02:19??Decision_tree\ID3-Decision-Tree-master\ID3.m
?????文件?????????605??2017-07-10?02:19??Decision_tree\ID3-Decision-Tree-master\PrintTree.m
?????文件????????1065??2017-07-10?02:19??Decision_tree\ID3-Decision-Tree-master\README.txt
?????文件????????7367??2017-07-10?02:19??Decision_tree\ID3-Decision-Tree-master\decisiontree.m
?????目錄???????????0??2018-07-31?10:27??Decision_tree\ID3-Decision-Tree-master\samples\
?????文件????????3220??2017-07-10?02:19??Decision_tree\ID3-Decision-Tree-master\samples\IvyLeague.txt
?????文件????????4093??2018-07-31?11:25??Decision_tree\matlab實現決策樹cart算法.txt
?????文件???????15740??2018-07-31?11:37??Decision_tree\matlab實現的ID3-分類決策樹-算法.docx
?????文件????????6820??2018-07-31?11:24??Decision_tree\決策樹C4.5算法matlab源代碼（完美運行）.txt