用MATLAB画误差对比图

%MATLAB代码

x1=[10,20,30,40,50,60,70,80,90,100];
x2=[10,20,30,40,50,60,70,80,90,100];
y1=[0.782348,0.762848,0.760904,0.75927,0.758466,0.757594,0.757858,0.758345,0.758924,0.759541];
y2=[0.868127,0.86432,0.860224,0.848935,0.844517,0.840976,0.836483,0.833668,0.83552,0.831399];
plot(x1,y1,'k-',x2,y2,'b--');%对比数据集合
title('误差对比图');%标题
xlabel('邻居数目K');
ylabel('mae');
legend('改进后的算法','未改进的算法');
%制作图例
grid on;
%显示网格