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091412

铁虫 (小有名气)

[求助] 1stopt带误差棒的非线性拟合求教

1stopt如何进行带误差棒的非线性拟合?求高手指教,我的代码如下:
//There are many test examples located in the folder: examples\

//Nonlinear regression: any No. of variables and parameters, any user-defined function
Title "pseudo second-order model";
Parameter a, k;
Variable x, y;
Function y=a*a*k*x/(1+a*k*x);
data;
A=[0      0     0
5        7.9       0.8
10        8.5              0.05
20        9.1          0.09
30        9.6               0.7
60        9.7                 0.05
120        9.83                0.04
300        9.87         0.005];
x=A(:,1);  y=A(:,2);  yEr=A(:,3);
errorbar(x,y,yEr),
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zyh700600

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Matlab也可用。
2楼2019-07-09 11:34:11
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