function?D?=?C4_5（train_features?train_targets?inc_node?region）

%?Classify?using?Quinlan‘s?C4.5?algorithm
%?Inputs:
%?	features	-?Train?features
%	targets	????-?Train?targets
%	inc_node????-?Percentage?of?incorrectly?assigned?samples?at?a?node
%	region	????-?Decision?region?vector:?[-x?x?-y?y?number_of_points]
%
%?Outputs
%	D			-?Decision?sufrace

%NOTE:?In?this?implementation?it?is?assumed?that?a?feature?vector?with?fewer?than?10?unique?values?（the?parameter?Nu）
%is?discrete?and?will?be?treated?as?such.?Other?vectors?will?be?treated?as?continuous

[Ni?M]		=?size（train_features）;
inc_node????=?inc_node*M/100;
Nu??????????=?10;

%For?the?decision?region
N???????????=?region（5）;
mx??????????=?ones（N1）?*?linspace?（region（1）region（2）N）;
my??????????=?linspace?（re

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2011-11-22?16:11??C4.5算法\
?????文件???????84480??2011-11-22?16:11??C4.5算法\C4.5學習手冊.doc
?????文件????????6026??2011-11-04?15:35??C4.5算法\C4_5.m
?????文件????????6956??2011-11-22?15:17??C4.5算法\C4_5——1.m
?????文件?????????758??2006-03-28?23:13??C4.5算法\calculate_error.m
?????文件????????1941??2006-03-28?23:13??C4.5算法\classification_error.m
?????文件????????2280??2006-03-28?23:15??C4.5算法\high_histogram.m
?????文件?????????738??2011-11-22?15:28??C4.5算法\inc_node.mat
?????文件?????????665??2011-11-22?15:50??C4.5算法\main.m
?????文件????????6827??2011-11-22?15:35??C4.5算法\Nclasses.mat
?????文件?????????738??2011-11-22?15:28??C4.5算法\region.mat
?????文件????????6827??2011-11-22?15:36??C4.5算法\test_features.mat
?????文件????????6827??2011-11-22?15:34??C4.5算法\test_targets.mat
?????文件?????????738??2011-11-22?15:27??C4.5算法\train_features.mat
?????文件?????????738??2011-11-22?15:27??C4.5算法\train_targets.mat