fmincon exitflag=0; MaxIter=3000; output.iterations=277

2014 7 18
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更新时间：2014 7 27
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fmincon gives me command window warnings that MaxIter is exceeded and returns the correct exitflag. But the returned iteration count is well below MaxIter.
Running MatLab R2014a.
Any idea what is going on?
Rob B.

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Alan Weiss
Alan Weiss 2014-7-18

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I am not sure what is going on here. Can you show us your options, and the way you called fmincon? I am also interested in seeing ALL of the fmincon output.
Alan Weiss
MATLAB mathematical toolbox documentation

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Robert
Robert 2014-7-18

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Here is the command window. The calling function is attached.
>> Run_NSx Input data for 14-Jun-1961 has been processed
Solver stopped prematurely.
fmincon stopped because it exceeded the function evaluation limit, options.MaxFunEvals = 3000 (the default value).
>> output
output =
iterations: 291
funcCount: 3004
constrviolation: 0
stepsize: 3.0823e-08
algorithm: 'interior-point'
firstorderopt: 0.0113
cgiterations: 690
message: 'Solver stopped prematurely.
fmincon stopped because it exceeded the function evaluation limit, options....'

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Alan Weiss
Alan Weiss 2014-7-27
There are only 291 iterations, well below the limit, that is true. But the solver stopped because the number of function evaluations, 3004, exceeded the function evaluation limit MaxFunEvals.
Alan Weiss
MATLAB mathematical toolbox documentation

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