[bug #63064] Statistics crashes when all pixels are nan

[Raul Infante-Sainz]

URL:
  <https://savannah.gnu.org/bugs/?63064>

                 Summary: Statistics crashes when all pixels are nan
                 Project: GNU Astronomy Utilities
               Submitter: infantesainz
               Submitted: Fri 16 Sep 2022 07:43:47 AM UTC
                Category: Statistics
                Severity: 3 - Normal
              Item Group: Crash
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any


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Follow-up Comments:


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Date: Fri 16 Sep 2022 07:43:47 AM UTC By: Raul Infante-Sainz <infantesainz>
I am trying to obtain the statistics of an image that all pixels are equal to
nan. While this a strange case and the input image is obviously wrong,
Statistics should give a consistent result as an output: nan values. Otherwise
in a general pipeline where this situations could happen, it crashes. This is
actually the current problem I am having with the following error:


aststatistics: img.fits (hdu: 1): all elements are blank
-vebratim-

Maybe a warning to show that all elements are blank/nan is good. That warning
could be disabled with the option '--quiet' while keep giving as an output nan
values. Does it sound reasonable?











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