How do I disable informational messages displayed by some optimization functions, such as LSQNONLIN?

The LSQNONLIN function displays the following message when the function terminates normally:

     Optimization terminated: norm of the current step is less

     than OPTIONS.TolX.

Answer 1

[MathWorks Support Team]

This message is not a warning message per se, and for that reason doesn't have a message ID which would allow it to be disabled.

Warnings can be suppressed using

''warning off all'

By default LSQNONLIN displays a message upon termination which gives information about the conditions under which the optimization finished. If you want to disable this functionality, you may use the options structure as follows:

opts1=  optimset('display','off');

This options structure can then be passed into the optimization function to disable the messages at the termination of the optimization.