[gnuastro-devel] [task #14986] Match: Include columns with no match in output

[Mohammad Akhlaghi]

URL:
  <http://savannah.gnu.org/task/?14986>

                 Summary: Match: Include columns with no match in output
                 Project: GNU Astronomy Utilities
            Submitted by: makhlaghi
            Submitted on: Tue 17 Jul 2018 12:01:02 AM CEST
         Should Start On: Mon 16 Jul 2018 12:00:00 AM CEST
   Should be Finished on: Mon 16 Jul 2018 12:00:00 AM CEST
                Category: Match
                Priority: 5 - Normal
              Item Group: Enhancement
                  Status: Postponed
                 Privacy: Public
        Percent Complete: 0%
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
                  Effort: 0.00

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Details:

Juan Molina: "Try to add a flag to the match procedure in which the
non-matched sources are added as additional ‘rows’ in the final catalog
file. But at the same moment keeping the useful information from the two
original catalogs (i.e., by adding new columns to the new catalog file). The
objects with no information in some columns may have assigned a “nan”
value."

This is a very useful suggestion to allow users to ask Match to build a
combined table that is larger than the two individual inputs. This allows
building up of a large collection of catalogs where some rows match and some
don't, but all will be kept. 




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