Find fit with problem

I am trying to batch-fit hundreds of traces. However, some of the traces could not be fit properly, and a singular matrix error appears after all the fits are finished.

Is it possible to find which fits, or traces, or indices did not work? I searched the Igor help for function fit and curve fit but could not find a proper flag.

Thank you for your help.

Yes, that is the solution.

You might want to take a look at the Batch Curve Fit procedure package. For more info, select File->Example Experiments->Curve Fitting->Batch Curve Fitting Demo