fcm,pcm聚类算法matlab程序.txt

FCM,PCM聚类算法MATLAB程序

function [U,center,result,w,obj_fcn]= fenlei(data) 
[data_n,in_n] = size(data); 
m= 2; % Exponent for U 
max_iter = 100; % Max. iteration 
min_impro =1e-5; % Min. improvement 
c=3; 
[center, U, obj_fcn] = fcm(data, c); 
for i=1:max_iter 
if F(U)>0.98 
break; 
else 
w_new=eye(in_n,in_n); 
center1=sum(center)/c; 
a=center1(1)./center1; 
deta=center-center1(ones(c,1),:); 
w=sqrt(sum(deta.^2)).*a; 
for j=1:in_n 
w_new(j,j)=w(j); 
end 
data1=data*w_new; 
[center, U, obj_fcn] = fcm(data1, c); 
center=center./w(ones(c,1),:); 
obj_fcn=obj_fcn/sum(w.^2); 
end 
end 
display(i); 
result=zeros(1,data_n);U_=max(U); 
for i=1:data_n 
for j=1:c 
if U(j,i)==U_(i) 
result(i)=j;continue; 
end 
end 
end