Re: problem with lsqcurvefit from optim packe

[Thomas D. Dean]

On 07/20/2016 08:47 AM, Andreas Stahel wrote:
> Dear user
>
> I am puzzled by a problem with the optim package. the reply of Octave to
>
> pkg load optim
> demo lsqcurvefit
>
> is
> ....
> lsqcurvefit example 1: failed
> '__nonlin_residmin__' undefined near line 83 column 20
>
> It seems that all functions in ~/octave/forge/optim-1.5.5/private
> can not be found. This is on an Ubuntu 14.04 system with Octave 4.03.
> On a sibling system the above works just fine!
>
> Can somebody give me a hint on how to tackle this puzzle?
>
> With best regards
>
> Andreas

The demo works with octave 4.0.2, optim pkg 1.5.1.  Looking at 
sourceforge, the latest release is 1.5.1.

"/octave/forge/optim-1.5.5/private" looks strange.  My optim package 
does not have 'forge' in its path.

I see

> ls "~/octave/optim-1.5.1/private"
__bracket_min.m            __octave_sqp_wrapper__.m
__collect_constraints__.m  __optimget_parallel_local__.m
__covd_wls__.m             __optimget_parallel_net__.m
__covp_corp_wls__.m        __plot_cmds__.m
__d2_min__.m               __residmin_stat__.m
__dfdp__.m                 __s2mat__.m
__do_user_interaction__.m  __semi_bracket.m
__lm_feasible__.m          __siman__.m
__lm_svd__.m               __sqp__.m
__nonlin_residmin__.m      optim_problems_p_r_y.data
__null_optim__.m

Tom Dean