detreeexp2_5.m

支持向量机工具箱

 %设置全局变量
global WM Model_Year bad_d numobs grpname
global  x y j quadclass tree
%创建含有x轴，y轴的栅格图来显示决策树错误分类
gscatter(x,y,grpname,'crk','odv')
xlabel('车重(吨)');
ylabel('里/加仑');
hold on;
plot(WM(bad_d,1), WM(bad_d,2), 'kx');
hold off;