对A、B两组数据进行曲线拟合

 X = load('a.txt'); 
 Y = load('b.txt'); 
 a =X(:,1);
 b =Y(:,1);
 c=1;
 p=polyfit(a,b,c);
 y=polyval(p,a);
 plot(a,y,'-',a,b,'.');

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转载自blog.csdn.net/strikedragon/article/details/86493964