Save output from 'Display' option when using fminsearch to object

I am using fminsearch to find the minimum of an objective function, but I want to be able to store the progress at each iteration in terms of the function value/action taken at that iteration. The following code prints out the information I want to the matlab terminal,

options = optimset('Display','iter')
[x,fval,exitflag,output] = fminsearch(fun,x0,options)

though I don't know how to save it to an object that I can use later on for analysis. Is this possible?

Thanks

Answer 1

[Matt J]

You should use the OutputFcn option, specifically, to save the optimValues inputs automatically fed to the Output Function that you specify.

Answer 2

[Walter Roberson]

If you do not need to be able to see the output as it is produced, then you can use evalc().

If you do need to be able to see the output as it is produced, then diary()

[Will Stone]

What should be passed to the evalc() function?

data = evalc(fminsearch(fun,x0,options))

returns the error

    Undefined function 'evalc' for input arguments of type 'double'.

and I don't see what else I can give it.

Thanks

[Walter Roberson]

output = evalc('[x,fval,exitflag,output] = fminsearch(fun,x0,options);')