因为一幅图进入matlab世界
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MATLAB根据数据拟合曲线
x1=[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100]
y1=[1,3,6,10,15,21,28,36,45,55,57,59,61,59,61,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,59,61,60,59,57,55,45,36,28,21,15,10,6,3,1]
plot(x1,y1,'or')
hold on
X = min(x1):.1:max(x1);
Y = interp1(x1,y1,X,'pchip');
plot(X,Y);
hold off
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