[Octave-bug-tracker] [bug #65683] Allow "monotonic" mode for function `issorted`

[Yihua Liu]

URL:
  <https://savannah.gnu.org/bugs/?65683>

                 Summary: Allow "monotonic" mode for function `issorted`
                   Group: GNU Octave
               Submitter: yihua_liu
               Submitted: Sat 04 May 2024 03:22:03 PM CST
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: None
             Assigned to: None
         Originator Name: Yihua Liu
        Originator Email: 
             Open/Closed: Open
                 Release: 9.1.0
         Discussion Lock: Any
        Operating System: Microsoft Windows
           Fixed Release: None
         Planned Release: None


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Follow-up Comments:


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Date: Sat 04 May 2024 03:22:03 PM CST By: Yihua Liu <yihua_liu>
Currently, the "MODE" parameter of the function `issorted` could be 'ascend',
'descend', or 'either' in libinterp/corefun/data.cc. However, MATLAB's
`issorted` function uses 'ascend', 'descend', or 'monotonic' for the "MODE"
parameter. Additionally, MATLAB offers 'strictascend', 'strictdescend', and
'strictmonotonic' modes. It seems that the three new modes are not difficult
to extend; the only issue is to change the 'either' mode to 'monotonic' based
on my understanding.







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