How to avoid unrecognized option names using optimget

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Luca Martinetti
Luca Martinetti 2024-10-31，19:15
评论： Luca Martinetti 2024-10-31，22:52
I am using lsqcurvefit and receiving errors related to the function lsqncommon. I did not have these errors in the past, so this may be due to changes with more recent versions of Matlab. How can I edit the lines below to avoid these errors? Thank you.
Error 1. "Unrecognized option name 'InitDamping'. See OPTIMSET for possibilities."
Relevant lines of lsqncommon:
algorithm = optimget(options,'Algorithm',defaultopt,optimgetFlag);
initDamping = optimget(options,'InitDamping',defaultopt,optimgetFlag);
if ~iscell(algorithm)
initLMparam = initDamping;
else
initLMparam = algorithm{2}; % Initial Levenberg-Marquardt parameter
algorithm = algorithm{1}; % Algorithm string
end
Error 2. "Unrecognized option name 'ProblemdefOptions'. See OPTIMSET for possibilities."
Relevant lines of lsqncommon:
ProblemdefOptions = optimget(options, 'ProblemdefOptions',defaultopt,optimgetFlag);
FromEqnSolve = false;
if ~isempty(ProblemdefOptions) && isfield(ProblemdefOptions, 'FromEqnSolve')
FromEqnSolve = ProblemdefOptions.FromEqnSolve;
end
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Matt J
Matt J 2024-10-31，22:22
编辑：Matt J 2024-10-31，22:34
The lsqncommon routine was rewritten between the two versions, and no longer has the problematic call.
I can't find any documentation of that. I don't think we've even identified what the "problematic call" is, because we haven't seen the OP's actual code.
When I run the hypothetical code that I proposed in R2024a, it still runs fine.
Luca Martinetti
Luca Martinetti 2024-10-31，22:35
Thank you both. Although I am using R2024a, that particular code still uses an older (2016-2019) version of lsqcurvefit. This older version of lsqcurvefit gives me the same error when I try the simplified code above:
Error using optimget
Unrecognized option name 'InitDamping'. See OPTIMSET for possibilities.
Error in lsqncommon
initDamping = optimget(options,'InitDamping',defaultopt,optimgetFlag);
Error in lsqcurvefit
lsqncommon(funfcn,xCurrent,lb,ub,options,defaultopt,allDefaultOpts,caller,...
The current version of lsqcurvefit does not give me these errors, and the simplified code above runs just fine.
Something has changed in lsqcurvefit between 2016-2019 and now that is causing this different behavior.

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Matt J
Matt J 2024-10-31，22:38
编辑：Matt J 2024-10-31，22:39
Although I am using R2024a, that particular code still uses an older (2016-2019) version of lsqcurvefit.
If so, problem solved. Use the version of lsqcurvefit that accompanies R2024a. It is obviously dangerous and unpredictable to mix Mathworks-authored files from different Matlab releases.

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