Turn off display for fsolve during a loop

I am using a loop function to perform fsolve on a matrix. I am adapting a script provided by another person which would be applied to one condition at a time and looping it so I can apply it to a set of 1,000 results. Here is how I have it set up:

Ap=bts2(:,1);
A1=(1+Ap.^2).^-1;
short2longratio=A1./(1-A1);
for v = 1:1:1000
      kin(v,:) = fsolve('sigma54_kinetics_fit_values_r12_weight_ratio',[.01 .01 .005],[],0,bts2(v,3),bts2(v,2),short2longratio(v));  
end

This means that I end up seeing the text for "Equation solved. ..." x1,000 when I run this loop. I tried the previously recommended answer to change the settings (see below), but it didn't work.

for v = 1:1:1000
    opts = optimset('Diagnostics','off', 'Display','off');
    kin(v,:) = fsolve('sigma54_kinetics_fit_values_r12_weight_ratio',[.01 .01 .005],[],0,bts2(v,3),bts2(v,2),short2longratio(v), opts);  
end

By changing the end of "fsolve('sigma54..." from "...ratio(v));" to "...ratio(v), opts);" the script/function breaks. If I just have the line for "opts = optimset..." and the regular ending of the fsolve function the display appears x1,000. Any solution?

[dpb]

Doc for fsolve and optimset says to use <optimoptions> instead for everything except fzero, fminbnd, fminsearch, and lsqnonneg. Whether that'll fix the issue I don't know, but I'd certainly start there.

Answer 1

[Alan Weiss]

Your call uses an undocumented (but still supported) syntax for passing extra parameters.

Place your options into the third argument, the one that is currently [].

kin(v,:) = fsolve('sigma54_kinetics_fit_values_r12_weight_ratio',...
    [.01 .01 .005],opts,0,bts2(v,3),bts2(v,2),short2longratio(v));

Also, don't set the options inside the loop, it is a time-consuming process. Set them before the loop.

Alan Weiss

MATLAB mathematical toolbox documentation

[Hoskins Lab]

I tried your suggestion and ran the following:

Ap=bts2(:,1);
A1=(1+Ap.^2).^-1;
short2longratio=A1./(1-A1);
opts = optimset('Diagnostics','off', 'Display','off');
for v = 1:1:1000
            kin(v,:) = fsolve('sigma54_kinetics_fit_values_r12_weight_ratio',[.01 .01 .005],opts,[],0,bts2(v,3),bts2(v,2),short2longratio(v));  
end

I got the following error message:

Error using sigma54_kinetics_fit_values_r12_weight_ratio
Too many input arguments.

Error in fsolve (line 219)
            fuser = feval(funfcn{3},x,varargin{:});

Error in LOOPTESTv3 (line 6)
            kin(v,:) = fsolve('sigma54_kinetics_fit_values_r12_weight_ratio',[.01 .01
            .005],[],0,bts2(v,3),bts2(v,2),short2longratio(v),opts);
  Caused by:
    Failure in initial user-supplied objective function evaluation. FSOLVE cannot continue.

[Hoskins Lab]

I read you answer wrong! When I corrected it and took out the extra "[]," it worked! Thank you!