[Octave-bug-tracker] [bug #57199] Lsqnonlin (optim package version 1.6.0) fails with Octave 6.0

[anonymous]

URL:
  <https://savannah.gnu.org/bugs/?57199>

                 Summary: Lsqnonlin (optim package version 1.6.0) fails with
Octave 6.0 
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Sun 10 Nov 2019 11:34:55 AM UTC
                Category: Octave Forge Package
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Unexpected Error
                  Status: None
             Assigned to: None
         Originator Name: JZimmer
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

Hello, 

I'm trying to call the function lsqnonlin() which belongs to the Optim
package. Using code that used to work with an older release of Octave (5.1 &
Optim package 1.5.3), I'm not getting any output but instead the following
error: 


error: 'fname' undefined near line 121, column 121
error: called from
    __jacobian_constants__>@<anonymous> at line 121 column 11
    __lm_svd__ at line 196 column 9
    __nonlin_residmin__ at line 452 column 25
    nonlin_residmin at line 98 column 25
    lsqnonlin at line 264 column 21


My current system looks like the following: 


ver
----------------------------------------------------------------------
GNU Octave Version: 6.0.0 (hg id: 37f9eb2c05e0+)
GNU Octave License: GNU General Public License
Operating System: Linux 5.0.0-32-generic #34~18.04.2-Ubuntu SMP Thu Oct
10 10:36:02 UTC 2019 x86_64
----------------------------------------------------------------------
Package Name  | Version | Installation directory
--------------+---------+-----------------------
     control *|   3.2.0 | /home/IT/jzimmer/octave/control-3.2.0
       image *|  2.10.0 | /home/IT/jzimmer/octave/image-2.10.0
          io *|  2.4.13 | /home/IT/jzimmer/octave/io-2.4.13
       optim *|   1.6.0 | /home/IT/jzimmer/octave/optim-1.6.0
      signal *|   1.4.1 | /home/IT/jzimmer/octave/signal-1.4.1
  statistics *|   1.4.1 | /home/IT/jzimmer/octave/statistics-1.4.1
      struct *|  1.0.16 | /home/IT/jzimmer/octave/struct-1.0.16


I spotted some changes in a backend procedure/call/... involving "__lm_svd__"
in the function nonlin_residmin in Optim 1.6.0 compared to 1.5.3, but I'm not
entirely sure if that's really the root of the problem or if it's *also* got
to do with the Octave 6.0 version. 








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