fminunc with a one-variable function
Jonathan Stickel
jjstickel at vcn.com
Fri Jul 24 12:34:15 CDT 2009
Jaroslav Hajek wrote:
> On Thu, Jul 23, 2009 at 5:32 PM, Jonathan Stickel<jjstickel at vcn.com> wrote:
>> I see the following when I use fminunc to minimize a function of just one
>> variable:
>>
>> function F = theF(x)
>> F = x.^2 + exp(x);
>> endfunction
>> x0 = 1;
>> [xmin,fmin] = fminunc(@theF,x0)
>>
>> error: Invalid call to cholupdate. Correct usage is:
>>
>> -- Loadable Function: [R1, INFO] = cholupdate (R, U, OP)
>>
>>
>> I know that there are other minimization functions that can be used for
>> single-variable functions, but fminunc should work too.
>>
>> Thanks,
>> Jonathan
>>
>
> Please try
> http://hg.savannah.gnu.org/hgweb/octave/rev/5fcf008c7c41
>
OK, I managed to compile chol.cc (thanks to jwe) from the indicated
changeset and put it in my path:
octave:6> which chol
`chol' is a function from the file
/Users/jstickel/programming/octave/local/chol.oct
However, I still see the same error as reported above.
Jonathan
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