From bolker@zoo.ufl.edu  Wed Oct  3 16:09:20 2001
From: bolker@zoo.ufl.edu (bolker@zoo.ufl.edu)
Date: Wed, 3 Oct 2001 17:09:20 +0200 (MET DST)
Subject: [Rd] tiny typo in optim/N-M documentation (PR#1109)
Message-ID: <200110031509.RAA09208@pubhealth.ku.dk>


In the optim() documentation,  the control parameter "maxit" says
"There is no other stopping criteria."  That should be "are", or
"criterion" ...

While I'm at it -- poking at the code a little bit, it looks as if the
initial simplex is set from the initial point by displacing each
parameter value by max(0.1,0.1*pmax(fabs(Bvec))), where Bvec is the
initial parameter set.  It would be nice to have a bit more external
control of this procedure.
  Is anyone interested in hacking this?  If I did it myself would
anyone be interested in the results?  Or does fussing with the
Nelder-Mead simplex seem silly because anyone who is really serious
about optimization will being using another method anyway?

  Ben Bolker

--please do not edit the information below--

Version:
 platform = i686-pc-linux-gnu
 arch = i686
 os = linux-gnu
 system = i686, linux-gnu
 status =
 major = 1
 minor = 3.1
 year = 2001
 month = 08
 day = 31
 language = R

Search Path:
 .GlobalEnv, package:LG3d, package:ts, package:nls, package:ellipse, package:mleprof, package:ctest, Autoloads, package:base

-- 
318 Carr Hall                                bolker@zoo.ufl.edu
Zoology Department, University of Florida    http://www.zoo.ufl.edu/bolker
Box 118525                                   (ph)  352-392-5697
Gainesville, FL 32611-8525                   (fax) 352-392-3704


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[Rd] tiny typo in optim/N-M documentation (PR#1109)
bolker@zoo.ufl.edu