
Re: Nonlinear optimization
Posted:
Mar 6, 2013 5:31 PM


"Matt J" wrote in message <kh8dvs$imu$1@newscl01ah.mathworks.com>...
> > But yes, the above is equivalent to minimizing F(x). That's what we want. Now, however, you can feed f(x) to LSQNONLIN and run its LevenbergMarquardt routine.
And in what sense this contortion supposes to do any good?
The GaussNewton approximation of the squareroot will certainly less accurate than working with F directly. Especially when the lowerbound is careless chosen.
Bruno

