MATLAB OPTIMIZATION TOOLBOX - RELEASE NOTES Manual do Utilizador descarregar pdf (Página 21)

3-3

Nonlinear least-squares tweaks

The lsqcurvefit and lsqnonlin solvers have slightly different behavior than before

when the internally calculated trust-region radius gets large in the 'trust-region-

reflective' algorithm, or the Levenberg-Marquardt parameter gets small in the

'levenberg-marquardt' algorithm. There are no longer any arbitrary limits on these

parameters. fsolve has the same change to its 'trust-region-reflective' and

'levenberg-marquardt' algorithms.

Parallel option change

The UseParallel option now accepts the values true and false. The option also

accepts the former values 'always' and 'never', and scalar values 1 and 0.

The affected solvers are fmincon, fgoalattain, and fminimax.

ktrlink default math library change

The ktrlink function uses a different default math library within KNITRO than before.

This change can enable ktrlink to run on more hardware versions.

Compatibility Considerations

With the new default math library, ktrlink runs slower than before. To use the

previous math library, set the KNITRO format option blasoption to 1. See Setting

Options.

bintprog will be removed in the future

intlinprog solves more problems than bintprog, and has better performance. So

bintprog will be removed in a future release.

To update your existing bintprog code to use intlinprog, see Tips.

ktrlink will be removed in the future

ktrlink will be removed in a future release. For an updated KNITRO interface, contact

Ziena Optimization: www.ziena.com.

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