fig_isodata.m

模式识别中的isodata算法

%% figure %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% ------------------------------------
%maximum figure axis value
mfaxis=max(sample(:)+1);

% ----------------------------------
figure;
plot(sample(:,1),sample(:,2),'r*','MarkerFaceColor','b','LineWidth',2);
title('原始数据点');
% legend('Original Points')
grid on;
axis([0 mfaxis 0 mfaxis]);
% ----------------------------------
figure;
for i=1:c
   if size(s{2,i},1)~=0
       plot(s{2,i}(:,1),s{2,i}(:,2),'-r*' ,'MarkerFaceColor','b','LineWidth',2);
       title('分类结果  (相互连接的点是一类)')
       grid on;
       hold on;
       % center
       plot(s{1,i}(1),s{1,i}(2),'bo','LineWidth',2);
       axis([0 mfaxis 0 mfaxis])
       legend('类内连接','聚心')
   end
end
% ----------------------------------
%%%Author: Feng Shuo%%%%%%%%