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using nelder_mead_min

From: echemist
Subject: using nelder_mead_min
Date: Fri, 22 Apr 2011 07:36:22 -0700 (PDT)

Hi all,

I am new to Octave.  

What I wish to do is to fit some experimental data to a model using the
Nelder-Mead method.

I am using the root mean squared deviation (RMSD) as my merit function
(function to be minimized by Nelder-Mead).

I am trying to figure out how to use the function nelder_mead_min.  I tried
searching the forum, but haven't found the answer to my question.  I
apologize if I missed something in that search.

According to the information here:

the parameters that nelder_mead_min requires are the function name (as a
string), a list of arguments, and an optional vector of control variables.

I am having trouble with the list of arguments.  What are these arguments? 
My general understanding of the Nelder-Mead method is that it is started
with N+1 values defining the initial vertices of the simplex in an
N-dimension space.  So, is this list of arguments that N+1 initial guesses
for that simplex?  If I need to provide the function with other parameters
(not to be minimized by Nelder-Mead), how can I do that?

Thanks for any help!


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