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Hello David,<br>
<br>
Do the <a
href="https://help.scilab.org/docs/6.0.0/en_US/leastsq.html">examples</a>
work? I need to know if the problem is related to your scripts or
leastsq.<br>
Could you please reduce to a minimal reproducible use-case and
report it on the <a href="http://bugzilla.scilab.org">bugzilla</a>?<br>
<br>
Regards,<br>
Paul<br>
<br>
<div class="moz-cite-prefix">On 03/20/2017 11:48 AM, David Chèze
wrote:<br>
</div>
<blockquote cite="mid:1490006900946-4035880.post@n3.nabble.com"
type="cite">
<pre wrap="">Hi,
I'm running scilab 6.0 on WIN7_64 and I failed to run optimisation based on
'optim' functions (leastsq) while fminsearch performed well. The call in my
code are summarized below :
-----
function RMSE=evaloptiM1D(X)
... calls to other macros to calculate the "cost"=RMSE returned value
endfunction
x0= [1.27 ; 0.8]
[fopt, xopt]=leastsq(evaloptiM1D,x0) //fail
[x, fval]=fminsearch(evaloptiM1D,x0',opt) //run ok
----------
fminsearch returns successfully X = 1.22 0.77
while
leastsq starts then fails with :
User function 'costf' have not been setted.
Any idea about what it means and where it could comes from ?
Thanks for your advice
David
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<pre class="moz-signature" cols="72">--
Paul BIGNIER
Development engineer
-----------------------------------------------------------
Scilab Enterprises
143bis rue Yves Le Coz - 78000 Versailles, France
Phone: +33.1.80.77.04.68
<a class="moz-txt-link-freetext" href="http://www.scilab-enterprises.com">http://www.scilab-enterprises.com</a></pre>
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