How to Interrupt Fitting
Procedure
Select the Command Window to make it active, and press 'Ctrl+C' simultaneously to interrupt fitting. This stops the program from executing completely. No results or plots are generated. This works nicely in R2008a, but not for example in R2006a.A more delicate way to interrupt the fitting process is available if the 'Show fit progress' option is chosen in the gui (in the 'Plotting options' panel). This provides a 'Pause' and 'Stop' button. The latter still interrupts the fitting process, but the results and plots are generated as if it converged to a solution.
See Also