clear?clc
load?data.mat;
k=input（‘k=?‘）;?????????????%輸入k的值
Distance=zeros（2000200）;???????????????????%歐式距離
for?i=1:2000
????for?j=1:200
????????temp=test（i:）-training（j:）;
????????Distance（ij）=sqrt（temp*（temp‘））;
????end
end
Knn=zeros（2000k）;??????????????????%D最小的k個數的下標
for?i=1:2000
????for?label=1:k
????????mini=min（Distance（i:））;
????????l=find（mini==Distance（i:））;
????????Knn（ilabel）=l;
????????Distance（il）=Distance（il）+99999999;
????end
end
ypred=zeros（20001）;
for?i=1:2000
????s=0;
????for?j=1:k
????????s=s+ytraining（Knn（ij））;
????end
????ypred（i）=sign（s）;???
end
accuracy=sum（ypred.*ytest==1）/2000;
save?Result_of_Knn?accuracy?ypred

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

?????文件????????588??2011-12-04?23:55??lsclassifier.m

?????文件????????346??2011-12-04?23:51??Result_of_Knn.mat

?????文件????????459??2011-12-04?23:57??Result_of_LS.mat

?????文件?????795128??2011-12-05?00:32??人工智能編程作業2.pdf

?????文件?????333902??2011-11-26?15:01??data.mat

?????文件????????707??2011-12-04?23:05??knnclassifier.m

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

??????????????1131130????????????????????6