[Octave-bug-tracker] [bug #62277] QR needs to accept "econ" argument for Matlab compatibility

[Arun Giridhar]

URL:
  <https://savannah.gnu.org/bugs/?62277>

                 Summary: QR needs to accept "econ" argument for Matlab
compatibility
                 Project: GNU Octave
            Submitted by: arungiridhar
            Submitted on: Sat 09 Apr 2022 07:30:46 AM EDT
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
                 Release: dev
         Discussion Lock: Any
        Operating System: Any

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Details:

Recent Matlab versions accept the "econ" input keyword for the qr function
that will allow for the reduced QR decomposition for tall and narrow input
matrices. Octave currently errors on the econ keyword.

Someone expressed interest in implementing this at
https://octave.discourse.group/t/octave-project-idea-more-memory-efficient-qr/2507/2

The memory-efficient reduced QR was already listed as a project at
https://wiki.octave.org/Projects

What's a good way to proceed for compatibility when the functionality isn't
there yet? Accept "econ" and treat it as full QR?




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