[spmatrix?tokenlist?category]?=?readMatrix（‘MATRIX.TEST‘）;

testMatrix?=?full（spmatrix）;
numTestDocs?=?size（testMatrix?1）;
numTokens?=?size（testMatrix?2）;

%?Assume?nb_train.m?has?just?been?executed?and?all?the?parameters?computed/needed
%?by?your?classifier?are?in?memory?through?that?execution.?You?can?also?assume?
%?that?the?columns?in?the?test?set?are?arranged?in?exactly?the?same?way?as?for?the
%?training?set?（i.e.?the?j-th?column?represents?the?same?token?in?the?test?data?
%?matrix?as?in?the?original?training?data?matrix）.

%?Write?code?below?to?classify?each?document?in?the?test?set?（ie?each?row
%?in?the?current?document?word?matrix）?as?1?for?SPAM?and?0?for?NON-SPAM.

%?Construct?the?（numTestDocs?x?1）?vector?‘output‘?such?that?the?i-th?entry?
%?of?this?vector?is?the?predicted?class?（1/0）?for?the?i-th??email?（i-th?row?
%?in?testMatrix）?in?the?test?set.
output?=?zeros（numTestDocs?1）;?????

%---------------
%?YOUR?CODE?HERE

%%%%%%%%%%%%?CODE?BY?王委濤?%%%%%%%%%%%%%%%%%%%%%%%%
%result_test?=?zeros（numTestDocs1）;????%?the?result?of?Test?=?output?
result?=?zeros（numclassifier1）;???????%?存儲每個測試樣本的屬于各個類別的概率
for?i?=?1:numTestDocs??????????????????%處理每一個測試樣本
????for?k?=?1:numclassifier????????????%在各個類別下的情況??
????????for?j?=?1:numTokens????????%對每個Token進行處理
????????????result（k）?=?result（k）?+?testMatrix（ij）?*?log（P_numToken（kj））;%計算P（Xi|Ck）
????????end
????result（k）?=?result（k）?+?log（P_category（k））;??%計算P（Xi|Ck）P（Ck）
????end
????if（result（1）?>?result（2））???????????%比較result（k）判斷測試樣本類型
????????output（i）?=?0;
????else
????????output（i）?=?1;
????end
????for?r?=?1:numclassifier????????????????????%將存儲矩陣清零，以用于存儲下一個樣本值
????????result（r）?=?0;
????end
end
%%%%%%%%%%%%%%CODE?BY?王委濤?%%%%%%%%%%%%%%%%%

%%%%%%%%%%%%%%CODE?BY?葛新朋?%%%%%%%%%%%%%%%%%
%計算誤判次數
numerror?=?0;
for?g?=?1:?numTestDocs
????if（category（g）?~=?output（g））
????????numerror?=?numerror?+?1;
????end
end
%display
disp（‘The?test?set?error?on?MATRIX.TEST?‘）
disp（numerror/numTestDocs）;
%%%%%%%%%%%%%%%CODE?BY?葛新朋%%%%%%%%%%%%%%%%%%


%---------------

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

?????文件??????74967??2013-09-25?13:35??作業\hw1.pdf

?????文件?????129205??2013-11-04?23:16??作業\hw2.pdf

?????文件????????657??2013-11-04?23:16??作業\hw2data.txt

?????文件?????201135??2012-10-26?14:20??作業\MATRIX.TEST

?????文件?????525629??2012-10-26?14:20??作業\MATRIX.TRAIN

?????文件??????33910??2012-10-26?14:20??作業\MATRIX.TRAIN.100

?????文件?????343763??2012-10-26?14:20??作業\MATRIX.TRAIN.1400

?????文件??????58065??2012-10-26?14:20??作業\MATRIX.TRAIN.200

?????文件?????107274??2012-10-26?14:20??作業\MATRIX.TRAIN.400

?????文件??????21769??2012-10-26?14:20??作業\MATRIX.TRAIN.50

?????文件?????205046??2012-10-26?14:20??作業\MATRIX.TRAIN.800

?????文件???????2197??2013-10-27?00:21??作業\nb_test.m

?????文件???????3116??2013-10-27?00:21??作業\nb_train.m

?????文件???????1159??2013-07-14?17:29??作業\readMatrix.m

?????文件???????2665??2013-10-27?00:21??作業\Result_HW1.txt

?????文件??????15391??2012-10-26?14:20??作業\TOKENS_LIST.txt

?????目錄??????????0??2013-11-04?23:17??作業

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

??????????????1725948????????????????????17