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From: | Robert Walton |
Subject: | [Octave-bug-tracker] [bug #30881] optim-1.0.12 nmsmax.m coding errors |
Date: | Thu, 26 Aug 2010 21:26:56 +0000 |
User-agent: | Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.8) Gecko/20100722 Firefox/3.6.8 |
URL: <http://savannah.gnu.org/bugs/?30881> Summary: optim-1.0.12 nmsmax.m coding errors Project: GNU Octave Submitted by: bwalton Submitted on: Thu 26 Aug 2010 09:26:55 PM GMT Category: None Severity: 3 - Normal Item Group: None Status: None Assigned to: None Originator Name: Robert Walton Originator Email: Open/Closed: Open Discussion Lock: Any Release: 3.2.4 Operating System: Microsoft Windows _______________________________________________________ Details: The optim-1.0.12 package's nmsmax.m (Nelder-Mead Simplex maximization) contains three coding errors. diff -c file fixing these problems is attached. The fixed file typically uses about 40% less function evaluations than the original, and doesn't get "stuck" at non-optimum points anywhere near as often (I don't want to claim "never"). _______________________________________________________ File Attachments: ------------------------------------------------------- Date: Thu 26 Aug 2010 09:26:55 PM GMT Name: nmsmax_diff.txt Size: 1kB By: bwalton diff -c file to fix optim-1.0.12 nmsmax.m <http://savannah.gnu.org/bugs/download.php?file_id=21317> _______________________________________________________ Reply to this item at: <http://savannah.gnu.org/bugs/?30881> _______________________________________________ Message sent via/by Savannah http://savannah.gnu.org/
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