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Yes, I need to know the values of the Lagrange multipliers during
iterations. Does Ipopt (independetly of using Matlab) provide them?
<p>Thanks,</p>
<p>Àlex<br>
</p>
<br>
<div class="moz-cite-prefix">On 14/05/17 22:25, Antonello L. wrote:<br>
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<blockquote
cite="mid:CAOibvJH0=SXwi_s6ODM_wNRP+fH8LgAUb8CNAws=0A0cuGTzgA@mail.gmail.com"
type="cite">
<div dir="auto">sorry, I didn't read that you need it **during
iterations**..
<div dir="auto">Jump provides solver callbacks, but I am not
sure you can use them in nonlinear programming nor to extract
lagrangian values..</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On 14 May 2017 9:39 p.m., "Antonello
Lobianco" <<a moz-do-not-send="true"
href="mailto:antonello@lobianco.org">antonello@lobianco.org</a>>
wrote:<br type="attribution">
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.8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div>You could access IPOPT using <a
moz-do-not-send="true"
href="http://jump.readthedocs.io/en/latest/"
target="_blank">Jump</a> instead of Matlab and get the
lagrangian with getdual([constraint name]).<br>
</div>
Antonello<br>
<div class="gmail_extra"><br>
<div class="gmail_quote">On 14 May 2017 at 11:34, Àlex
Ferrer <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:aferrer@cimne.upc.edu"
target="_blank">aferrer@cimne.upc.edu</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Hi
everyone,<br>
<br>
I am using Ipopt via the Matlab interface for
solving my optimization problem.<br>
<br>
I need to know the values of the Lagrange
multipliers during iterations and I could not find a
way to get them from Ipopt.<br>
<br>
I was wondering if someone could help me with this.<br>
<br>
Thank you in advance,<br>
<br>
Àlex<br>
<br>
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<div dir="ltr"><span><span>Antonello Lobianco<br>
AgroParisTech, Laboratoire d'Economie
Forestière<br>
14 Rue Girardet - 54000 Nancy, France<br>
Tel: <a moz-do-not-send="true"
href="tel:+33%203%2083%2039%2068%2065"
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target="_blank">antonello.lobianco@inra.fr</a><br>
Email, personal: <a
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href="mailto:antonello@lobianco.org"
target="_blank">antonello@lobianco.org</a><br>
<a moz-do-not-send="true"
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target="_blank">http://antonello.lobianco.org</a></span></span></div>
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candidate student, M.Sc. Aeronautical Engineering</i></td>
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