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ΪʲôÎÒÔËÐÐÏÂÃæµÄ³ÌÐò£¬ÀÏÌáʾÎÒ In mean at 219 £¬Divide by zero£¿ ¾ÍÊÇÕâÌõÓï¾ä Centers(:,i)=mean(SamIn(:,Index)')'; Çó¸ßÈËÖ¸µã clc clear data=xlsread('date.xls'); train=data(1:70, ;test=data(71:77, ;SamNum=70; %ѵÁ·Ñù±¾ TestSamNum=7; % Overlap=[0.25 0.1 0.2]; %ÊäÈëÊä³ö¾ØÕó %ѵÁ·Êý¾Ý SamIn=train(:,1:3)'; SamOut=train(:,4:6)'; %Ô¤²âÊý¾Ý TestSamIn=test(:,1:3)'; TestSamOut=test(:,4:6)'; %½ÚµãÊý InDim=3; %ÊäÈë½Úµã ClusterNum=38; %Òþº¬½Úµã %³õʼ»¯ÖÐÐÄ Centers=SamIn(:,1:ClusterNum); NumberInClusters=zeros(ClusterNum,3); IndexInClusters=zeros(ClusterNum,SamNum); %µü´úÇó½â¾ùÖµÖÐÐÄ while 1 NumberInClusters=zeros(ClusterNum,3); IndexInClusters=zeros(ClusterNum,SamNum); %¼ÆËãÑù±¾µãµ½ÖÐÐĵľàÀë for i=1:SamNum AllDistance=dist(Centers',SamIn(:,i)); [MinDist,Pos]=min(AllDistance); NumberInClusters(Pos)=NumberInClusters(Pos)+1; IndexInClusters(Pos,NumberInClusters(Pos))=i; end OldCenters=Centers; %¸ù¾ÝÖÐÐľÛÀ࣬²¢µÃµ½ÐµÄÀàÄÚ¾ùÖµ for i=1:ClusterNum Index=IndexInClusters(i,1:NumberInClusters(i)); Centers(:,i)=mean(SamIn(:,Index)')'; end %ÅжÏÖÐÐÄÓÐûÓб仯 EqualNum=sum(sum(Centers==OldCenters)); if EqualNum==InDim*ClusterNum break end end AllDistances=dist(Centers',Centers); Maximun=max(max(AllDistance)); for i=1:ClusterNum AllDistances(i,i)=Maximun+1; end Spreads=Overlap*min(AllDistances)'; Distance=dist(Centers',Samln); SpreadsMat_l=repmat(Spreads(:,1),1,SamNum); SpreadsMat_2=repmat(Spreads(:,2),1,SamNum); SpreadsMat_3=repmat(Spreads(:,3),1,SamNum); HiddenUnitOut_1=radbas(Distance./SpreadsMat_1); HiddenUnitOut_2=radbas(Distance./SpreadsMat_2); HiddenUnitOut_3=radbas(Distance./SpreadsMat_3); HiddenUnitOutEx_1=[HiddenUnitOut_l' ones(SamNum,1)]'; HiddenUnitOutEx_2=[HiddenUnitOut_2' ones(SamNum,1)]'; HiddenUnitOutEx_3=[HiddenUnitOut_3' ones(SamNum,1)]'; W2Ex_1=SamOut(1, *pinv(HiddenUnitOutEx_1);W2Ex_2=SamOut(2, *pinv(HiddenUnitOutEx_2);W2Ex_3=SamOut(3, *pinv(HiddenUnitOutEx_3);W2_1=W2Ex_l(:,1:ClusterNum); B2_1=W2Ex_l(:,ClusterNum+1); W2_2=W2Ex_2(:,1:ClusterNum); B2_2=W2Ex_2(:,ClusterNum+1); W2_3=W2Ex_3(:,1:ClusterNum); B2_3=W2Ex_3(:,ClusterNum+1); TestDistance=dist(Centers',TestSamln); TestSpreadsMat_l=repmat(Spreads(:,1),1,TestSamNum); TestSpreadsMat_2=repmat(Spreads(:,2),1,TestSamNum); TestSpreadsMat_3=repmat(Spreads(:,3),1,TestSamNum); TestHiddenUnitOut_1=radbas(TestDistance./TestSpreadsMat_1); TestHiddenUnitout_2=radbas(TestDistance./TestSpreadsMat_2); TestHiddenUnitOut_3=radbas(TestDistance./TestSpreadsMat_3); TestNNOut_1=W2_1*TestHiddenUnitOut_1+repmat(B2_1,[1,TestSamNum]); TestNNOut_2=W2_2*TestHiddenUnitOut_2+repmat(B2_2,[1,TestSamNum]); TestNNOut_3=W2_3*TestHiddenUnitOut_3+repmat(B2_3,[l,TestSamNurn]); TestNNOut(1, =TestNNOut_l;TestNNOut(2, =TestNNOut_2;TestNNOut(3, =TestNNOut_3;plot(TestSamIn,TestNNOut(1, ,'k-');hold on |
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