function?[data_2?index?weight]?=?f_select（data_2label_2weight）
label_num?=?size（label_22）;
[feature_num?tr_num]?=?size（data_2）;
if?label_num?~=?tr_num
????fprintf（‘no?match‘）
end
err?=?zeros（feature_num1）;
in?=?cell（feature_num1）;
for?i?=1:feature_num
????feature?=?data_2（i:）;
????fea_w?=?sort（feature）;??
????[Err?In]?=?getErr（feature?fea_w?label_2?weight）;
????err（i）?=?Err;
????in{i}?=?In;
end
[value?index]?=?min（err）;%第index個特征
%更改權重
beta?=?value/（1-value）;
I?=?in{index};

weight?=?weight.*beta.^（1-I）;
%將第index個特征對應的所有特征值置為0
if?index?==?1
????data_2?=?data_2（2:end:）;
else?if?index?==?feature_num
????????data_2?=?data_2（1:end-1:）;
????else?data_2?=?[data_2（1:（index-1）:）;data_2（（index+1）:end:）];
????end
end
????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2010-12-21?10:47??adaboost_?two?classes\
?????文件??????810957??2010-12-15?21:58??adaboost_?two?classes\57結合Gabor特征與Adaboost的人臉表情識別.pdf
?????文件??????324119??2007-11-16?00:00??adaboost_?two?classes\ADB_RealTimeFaceDetection[文獻10].pdf
?????文件??????888816??2010-11-24?16:17??adaboost_?two?classes\data_label.mat
?????文件?????????767??2010-12-20?19:41??adaboost_?two?classes\f_select.asv
?????文件?????????791??2010-12-20?19:44??adaboost_?two?classes\f_select.m
?????文件????????1003??2010-11-24?17:09??adaboost_?two?classes\getCorr.m
?????文件????????1087??2010-12-19?19:59??adaboost_?two?classes\getErr.asv
?????文件????????1097??2010-12-19?20:03??adaboost_?two?classes\getErr.m
?????文件?????????662??2010-12-16?10:35??adaboost_?two?classes\getfeature.m
?????文件??????897625??2010-12-20?09:40??adaboost_?two?classes\matlab試驗.mat
?????文件??????????41??2010-12-19?21:26??adaboost_?two?classes\TXN2.m
?????文件??????888946??2010-12-20?10:01??adaboost_?two?classes\【13】featureADA_2類數據.mat
?????文件??????888930??2010-12-20?09:58??adaboost_?two?classes\【6】feature_ada2類.mat