optimset in fminsearch

What is wrong?

Matlab 2012a

Undefined function 'optimset' for input arguments of type 'char'.

options = optimset('Display','off');
est = fminsearch(@LF_GMFitFn,estimates,options,iModel,t,sizes);

[Daniel Shub]

What do you get with

which optimset -all

[Walter Roberson]

What (if anything) does

which -all optimset

return?

[Jeremy Shaver]

Had the same problem - I assume this user has solved the problem, but if someone else is looking, it is a path problem after upgrading. See: <http://www.mathworks.com/support/solutions/en/data/1-IAA3S5/index.html?solution=1-IAA3S5>