这个StartPoint应该指的是待求参数的初值。意思是，您给一个粗略的估计，然后fit函数可以根据这个估计去...
I am trying to fit function F to experimental data. x_tem and yd are both vectors of size (12,1). The function should find the best fitting value y_tau of the function to the experimental data. I just can't find the mistake - matlab is showing me the error : Error in lsqcurve...
If you have the Curve Fitting Toolbox, it's easy to fit a surface to 3 x,y,z vectors using the fit function. Here's some example code that fits a polynomial surface to random points. You can define your own fitting function if you like or check out the other fitTypes they have fo...
Open in MATLAB Online I am trying to use the fit function in the curvefit toolbox in 2016a. Here's an example: >> x = [1:100]'; >> y = x.^2; >> results = fit(x,y,'exp1') Errorusing fit>iFit (line 340) Toomany input arguments. ...
这个StartPoint应该指的是待求参数的初值。意思是，您给一个粗略的估计，然后fit函数可以根据这个估计去精确化。4个参数，那就给一个长度为4的向量，例如[0 0 0 0];如果还不行的话，可以把关键代码贴出来看看。
Although the main focus is the ex-Gaussian function, the general procedure described here can be used to estimate best fitting parameters of various probability functions. The proposed computational tools, written in MATLAB source code, are available through the Internet....
x-b(6)).^2/(2*a(6).^2))+1/(sqrt(2*pi)*a(7))*exp(-(x-b(7)).^2/(2*a(7).^2))+1/(sqrt(2*pi)*a(8))*exp(-(x-b(8)).^2/(2*a(8).^2))','b','x');你把上面这个函数写成function函数的形式 ，上面的写法是读不到a(1)的，只会把它当成字符处理 ...
fit— Rational function object rfmodel.rationalobject One or more rational function objects, returned as anN-by-Nrfmodel.rationalobject. The number of dimensions indatadetermines the dimensionality ofh. errdb— Relative error double Relative error achieved, returned as adouble, in dB. ...
beta = nlmefit(X,y,group,V,fun,beta0)は、非線形混合効果の回帰モデルを当てはめ、betaに固定効果の推定を返します。既定の設定では、nlmefitは、各パラメーターが固定効果と変量効果の和となり、変量効果が無相関となる (変量効果の共分散行列が対角行列である) モデルを当てはめます。
logL— Optimized loglikelihood objective function value scalar Optimized loglikelihood objective function value, returned as a scalar. Data Types: double info— Optimization summary structure array Optimization summary, returned as a structure array with the fields described in this table. FieldDescription...