problem with optimset not being recognized, R2012a

I just loaded R2012a this morning and my old m-files are broken. I am having trouble with optimset, and just decided to put optimset in the m-file, as the help says "optimset" alone should return the options. Instead I get this error:

Undefined function or variable 'optimset'

which optimset

yields:

'optimset' not found

even though which lsqcurvefit yields: C:\Program Files\MATLAB\R2012a\toolbox\shared\optimlib\lsqcurvefit.m

Here is my output from ver: MATLAB Version: 7.14.0.739 (R2012a) MATLAB License Number: ####### [SCd Censor] Operating System: Microsoft Windows 7 Version 6.1 (Build 7601: Service Pack 1) Java Version: Java 1.6.0_17-b04 with Sun Microsystems Inc. Java HotSpot™ 64-Bit Server VM mixed mode -------------------------------------------------------------------------------------------------------

MATLAB                                                Version 7.14       (R2012a)
Simulink                                              Version 7.9        (R2012a)
Bioinformatics Toolbox                                Version 4.1        (R2012a)
Control System Toolbox                                Version 9.3        (R2012a)
Curve Fitting Toolbox                                 Version 3.2.1      (R2012a)
DSP System Toolbox                                    Version 8.2        (R2012a)
Data Acquisition Toolbox                              Version 3.1        (R2012a)
Image Acquisition Toolbox                             Version 4.3        (R2012a)
Image Processing Toolbox                              Version 8.0        (R2012a)
Instrument Control Toolbox                            Version 3.1        (R2012a)
MATLAB Compiler                                       Version 4.17       (R2012a)
MATLAB Report Generator                               Version 3.12       (R2012a)
Neural Network Toolbox                                Version 7.0.3      (R2012a)
Optimization Toolbox                                  Version 6.2        (R2012a)
Parallel Computing Toolbox                            Version 6.0        (R2012a)
Partial Differential Equation Toolbox                 Version 1.0.20     (R2012a)
Signal Processing Toolbox                             Version 6.17       (R2012a)
SimBiology                                            Version 4.1        (R2012a)
SimMechanics                                          Version 4.0        (R2012a)
Simscape                                              Version 3.7        (R2012a)
Spreadsheet Link EX                                   Version 3.1.5      (R2012a)
Stateflow                                             Version 7.9        (R2012a)
Statistics Toolbox                                    Version 8.0        (R2012a)
Symbolic Math Toolbox                                 Version 5.8        (R2012a)
Wavelet Toolbox                                       Version 4.9

What happened to my install?

Thanks

Answer 1

[Matthew]

I did a complete download and reinstall. After the reinstall, I located optimset in the path Arthur suggested above, as opposed to the one I found earlier in \funfun. But still no optimset. When I started matlab in told me that my Toolbox Path Cache was out of date. I reapplied the setting under general, and it started working.

Thanks Arthur for the help.

Answer 2

[Arthur Goldsipe]

I would first ensure that optimset.m got installed. Based on the location of your R2012a installation, look for the file at C:\Program Files\MATLAB\R2012a\toolbox\matlab\optimfun\optimset.m. If the file is not there, then the toolbox got installed incorrectly. If that's the case, I would contact technical support for further help.

If the file is there, it sounds like your MATLAB path got corrupted. From the MATLAB prompt, run the command restoredefaultpath and see if optimset is then available. If it is, you can save this restored path by running the command savepath. If you used to have some of your own directories added to the path, you will need to add them back and re-run savepath. You can also manage the path using a graphical tool, which you can open by running the pathtool command or by selecting File > Set Path from the Desktop menu.

[Marc Ramsey]

Thank you for this answer. I had the same problem this morning when upgrading from r2010a to r2012a, and this fixed it.

Answer 3

[Matthew]

I have not deleted R2011b. optimset is in matlab\funfun, but it is not in this folder in R2012a.

Should I reinstall?

Answer 4

[Matthew]

I have reinstalled, but the problem remians, no optimset.

I installed on my laptop. NO PROBLEM!

What is the deal?

Thanks to anyone that can help.

Answer 5

[Lea]

I have the same problem "undefined function optimset for char' but only when running it in a "parfor loop". If I run it just as a "for loop", it works fine. The problem only occured after installing r2012b. anyone that can help?

[Andreas Sprenger]

Optimset meanwhile resides in a separate folder. Check whether

%matlabroot%\toolbox\matlab\optimfun

is in your standard path (using path or Set Path via File Open or Ribbon).

Adding this folder resolves the problem.