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How to solve Too many input arguments error? Error in Fminsearch (line 200) fv(:,1) = funfcn(x,varargin{:});

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feihong xu
feihong xu on 13 Feb 2020
Commented: feihong xu on 13 Feb 2020
Hello,
I am doing the modelling and I am trying to find the best fit parameter with mini errors.
the experimental data is MSM, which has 6 coloums indicating 6 different measurements.
I would like to use loop to find the fits for those 6 models.
Here is my code
%% minimization / parameter estimation
% specify function handle to function vpe
fh=cell(6,1);
global pesmin
global pelmin
global Vsmin
global Vlmin
pesmin = rand(2,6); % estimated parameter
Vsmin= rand(1,6); % error
for n=1:6; %function handle
fh{n}= @(pes)vpe(pes(:,n),p,MSM(:,n),erps(:,n),n);
end
for n=1:6; % search for the mini error
[pesmin(:,n),Vsmin(n)] = fminsearch(fh{n},reshape(pesmin(:,n),[2,1]));
end
this loop can only run once. as n=2 or >2, the error comes out. the error shows Index at position 2 is out of range of the array (cannot exceed 1). I really did not get where is the position 2. what does it mean position 2 is out of range of the array.
for n=1:c/2; % search for the mini error
[pesmin(:,n),Vsmin(n)] = fminsearch(fh{n},reshape(pesmin(:,n),[2,1]));
end
Besides, it also shows

  3 Comments

Walter Roberson
Walter Roberson on 13 Feb 2020
pes(:,n)
pes does not exist in the code you posted, so we do not know how large it is.
Likewise for MSM and erps.
feihong xu
feihong xu on 13 Feb 2020
pes is 2x6 matrix. p is 25x1. MSM is 25x6. erps is 25 x6.
I guess the error is from the function handle. I wanna pes changes as a colomun 2x1 since pes is 2x6.
fh{n}= @(pes)vpe(pes(:,n),p,MSM(:,n),erps(:,n),n);
But this code does not work
fh{n}= @(pes(:,n))vpe(pes(:,n),p,MSM(:,n),erps(:,n),n);

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