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wuyazi/线性分类器SVM.m

Created April 7, 2014 10:24
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线性分类器SVM.m
%% svm
H = eye(d+1);
H(d+1,d+1) = 0;
w = quadprog(H,zeros(d+1,1),A,c);
hold on;
x1 = -shift-2:0.1:shift+2*sigma;
y1 = (-w(3)-w(1)*x1)/w(2);
plot(x1,y1,'g-','LineWidth',2);
y1 = (-1-w(3)-w(1)*x1)/w(2);
plot(x1,y1,'g-','LineWidth',2);
y1 = (1-w(3)-w(1)*x1)/w(2);
plot(x1,y1,'g-','LineWidth',2);
legend('Positive samples','Negative samples','Linear programming','Linear SVM');
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