[daip] [!5320]: aips - OMFIT

Lynn D Matthews do-not-reply at nrao.edu
Wed Aug 6 17:57:50 EDT 2014


Lynn D Matthews updated #5320
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OMFIT
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           Ticket ID: 5320
                 URL: https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/5320
           Full Name: Lynn D Matthews
               Email: lmatthew at haystack.mit.edu
             Creator: User
          Department: AIPS Data Processing
       Staff (Owner): Eric Greisen
                Type: Issue
              Status: Open
            Priority: Default
                 SLA: NRAO E2E
      Template Group: Default
             Created: 05 August 2014 02:18 PM
             Updated: 06 August 2014 05:57 PM
      Resolution Due: 13 August 2014 02:18 PM (6d 20h 20m)



If the program is ignoring the frequency information or not dealing with it correctly, then you
are right, I can just average more. 

I'll add though, that the way the program fails if there are too many IFs or channels seems odd;
even with an excellent starting guess, on the first iteration all fit parameters become "NaN" and never
recover. And even if one freezes all the fit parameters, the reported post-fit statistics are all reported
as "NaN".

Lynn

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