Re: fmincon error in planerot (bug?)

"Daniel Vogel" <removethispart.dvogel@xxxxxxxxxxxxxxx> wrote
in message <g7sa45$hh7$1@xxxxxxxxxxxxxxxxxx>...
fmincon is causing a strange error message in matlab 2007b
when constraining the solution with upper and lower bounds.
(rest of original post removed for brevity)

With more trial and error, I found I can usually avoid this
error by choosing different initial values for the
parameters to be optimized. So, as a workaround, I wrap it
in a try/catch block and re-run again after perturbing the
initial parameters.

This is far from elegant or efficient, and I'm still puzzled
why this error occurs at all. I would have expected a
controlled early termination if something is malformed in
the input, but the error I'm seeing indicates a bug in
fmincon or one of its helper functions.

Am I the only one that has ever encountered this?

Thanks,

Dan
.

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