function?[?p_cluster?]?=?em（p_sample?k?feature_num?sample_num）
%UNtitleD1?Summary?of?this?function?goes?here
%??Detailed?explanation?goes?here

%初始化k個中心
p_cluster?=?p_sample（:1:k）;
p_cluster?=?p_cluster‘;%（p_cluster-500*51）
para?=?0.5;
para?=?1/sqrt（2?*?para）;
%進行迭代
for?i=1:2000
????%E步
????p_dist?=?para?*?dist（p_cluster?p_sample）;
????p_dist?=?radbas（p_dist）;
????p_dist_sum?=?sum（p_dist）;
????for?i1=1:sample_num
????????e_z（:i1）?=?p_dist（:i1）/p_dist_sum（i1）;
????end
????
????%M步
????for?i2=1:k
????????%u‘的分子部分
????????p_temp_vec?=?zeros（21）;
????????for?i3=1:sample_num
????????????p_temp_vec?=?p_temp_vec?+?e_z（i2i3）?*?p_sample（:i3）;
????????end?
????????p_cluster（:i2）=p_temp_vec./sum（e_z（i2:））;
????end????
end
p_cluster?=?p_cluster‘;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????1027803??2009-03-06?17:06??MATLAB\12254627660.pdf

?????文件??????11704??2009-03-06?16:50??MATLAB\13898399GaussEm.rar

?????文件?????684143??2009-03-06?16:51??MATLAB\EM+Algorithm.pdf

?????文件?????810732??2009-03-06?16:53??MATLAB\EM+Algorithm56.pdf

?????文件????????774??2009-03-06?16:58??MATLAB\em.m

?????文件?????617488??2009-03-06?17:01??MATLAB\EM_cn.rar

?????文件???????2667??2009-03-06?16:59??MATLAB\em算法代碼.rar

?????文件?????290219??2009-03-06?16:54??MATLAB\Gentle++Tutorial+of+the+EM++Algorithm.pdf

?????文件?????102400??2009-03-06?17:03??MATLAB\prf.tar

?????文件?????249051??2009-03-06?17:07??MATLAB\_EM_算法及其在混合高斯模型中的應用.pdf

?????文件????????271??2009-02-07?00:59??MATLAB\編程\EM\EM\EM.cfp

?????文件??????11382??2009-02-07?00:54??MATLAB\編程\EM\EM\em.cpp

?????文件??????76833??2009-02-07?00:54??MATLAB\編程\EM\EM\EM.exe

?????文件???????2040??2009-02-06?17:14??MATLAB\編程\EM\EM\em.h

?????文件??????24643??2009-02-07?00:54??MATLAB\編程\EM\EM\em.o

?????文件????????832??2009-02-07?00:43??MATLAB\編程\EM\EM\main.cpp

?????文件???????6341??2009-02-07?00:54??MATLAB\編程\EM\EM\main.o

?????文件???????3160??2008-11-26?19:41??MATLAB\編程\MAP\MAP.m

?????文件???????1467??2009-02-26?09:37??MATLAB\編程\MAP\MAP.txt

?????目錄??????????0??2009-03-06?19:14??MATLAB\編程\EM\EM

?????目錄??????????0??2009-03-06?19:14??MATLAB\編程\EM

?????目錄??????????0??2009-03-06?19:14??MATLAB\編程\MAP

?????目錄??????????0??2009-03-06?19:14??MATLAB\編程

?????目錄??????????0??2009-03-06?19:14??MATLAB

-----------?---------??----------?-----??----

??????????????3923950????????????????????24