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Re: problem with lsqcurvefit from optim packe


From: Thomas D. Dean
Subject: Re: problem with lsqcurvefit from optim packe
Date: Wed, 20 Jul 2016 10:26:55 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.8.0

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



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