- 技术
- matlab 神经网络--坐标点的二类模式分类
坐标点的二类模式分类
clear all
;
n
=0.2;
w
=[0,0,0];
P
=[-9,1,-12,-4,0,5;...
15,-8,4,5,11,9];
d
=[0,1,0,0,0,1];
P
=[ones(1,6);P
];
MAX
=20;
i
=0;
while 1
v
=w
*P
;
y
=hardlim(v
);
e
=(d
-y
);
ee(i
+1)=mae(e
);
if (ee(i
+1)<0.001)
disp('we have got it:');
disp(w
);
break;
end
w
=w
+n
*(d
-y
)*P'
;
i
=i
+1;
if (i
>=MAX
)
disp('MAX times loop');
disp(w
);
disp(ee(i
+1));
break;
end
end
figure
;
subplot(2,1,1);
plot([-9,-12,-4,0],[15,4,5,11],'o');
hold on
;
plot([1,5],[-8,9],'*');
axis([-13,6,-10,16]);
legend('第一类','第二类');
title('6个坐标点的二分类');
x
=-13:.2:6;
y
=x
*(-w(2)/w(3)-w(1)/w(3));
plot(x
,y
);
hold off
;
subplot(2,1,2);
x
=0:i
;
plot(x
,ee
,'o-');
s
=sprintf('mae的值（迭代次数：%d）',i
+1);
title(s
);
Processed:
0.009, SQL:
9
