is there a flag for fit failure?

From: Nevzat Guler <nguler_at_jlab.org>
Date: Wed, 1 Aug 2007 21:31:21 -0400 (EDT)

	Hello,
	I am fitting TGraphErrors with "expo" function. But for some bins,

there is no data, still fit concludes with: MIGRAD MINIMIZATION HAS CONVERGED.
 MIGRAD WILL VERIFY CONVERGENCE AND ERROR MATRIX.   MNHESS FAILS AND WILL RETURN DIAGONAL MATRIX. And gives zero parameters with non-zero errors. Is there a flag that I can look and set when this happens? I plot these parameters later and fit them and I don't want to include these "fake" parameters into that plot.. What is the safets way to catch these failed fits?

        Thank you very much..!

                                Nevzat Guler Received on Thu Aug 02 2007 - 03:31:29 CEST