Path: csiph.com!usenet.pasdenom.info!gegeweb.org!usenet-fr.net!nerim.net!novso.com!newsfeed.xs4all.nl!newsfeed2.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.028 X-Spam-Evidence: '*H*': 0.95; '*S*': 0.00; 'algorithm': 0.04; 'scipy': 0.05; 'positioned': 0.09; 'cc:addr:python-list': 0.11; 'python': 0.11; "wouldn't": 0.14; 'benjamin': 0.16; 'programmatic': 0.16; 'wrote:': 0.18; 'properly': 0.19; 'solution.': 0.20; 'work,': 0.20; 'thanks.': 0.20; 'cc:addr:python.org': 0.22; 'header:User- Agent:1': 0.23; 'cc:2**0': 0.24; 'cc:no real name:2**0': 0.24; "i've": 0.25; 'excel': 0.26; 'header:In-Reply-To:1': 0.27; 'tried': 0.27; 'am,': 0.29; 'possibility': 0.29; "i'm": 0.30; '(which': 0.31; 'getting': 0.31; 'sep': 0.31; 'anyone': 0.31; 'class': 0.32; 'figure': 0.32; 'another': 0.32; "can't": 0.35; 'something': 0.35; 'test': 0.35; 'but': 0.35; 'received:google.com': 0.35; 'url:org': 0.36; 'too': 0.37; 'easy': 0.60; 'spot': 0.65; 'to:addr:gmail.com': 0.65; 'results': 0.69; 'forced': 0.84; 'look.': 0.84; 'oscar': 0.84; 'url:reference': 0.84; 'vba': 0.84; '2013': 0.98 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:newsgroups:to:cc :subject:references:in-reply-to:content-type :content-transfer-encoding; bh=lkUPFUE3CdSAIQ6TRAf19DhzMWISzpp+VqNJoXCFeRU=; b=0mdtUt+51fmqdmxAym9NlBJQyWV0+N8blQbHOsp2VuJMjnx7ufKX2jfhkNuvdsDnqI HjsWy+TDVTYckMqBBK1Fm07bgI8cZNtdYm/JRdDtZHuFflIBPbpKfLXa8zD33UFRX0NS idm4R5DB7x9TIKCG5SvsAtYFJmhZEsJ99Eftooe+QirQXnbg97VBf3wzxHiFF2MlP+Ni 6/w9Rgdui5MA+ualVJy1SIFm9bOtJzF+jCRMrTTTK+5PaX7M1CBjqs6fqJSffO7YyfFW VgLc+YFQLVPW/u6fxwsupMM7k4P3uOaM0AxGSyWWBqFMg+f2WOR0ta0HF73NS7n814Ac 7Oiw== X-Received: by 10.221.64.17 with SMTP id xg17mr23453289vcb.5.1378132970509; Mon, 02 Sep 2013 07:42:50 -0700 (PDT) Date: Mon, 02 Sep 2013 10:42:47 -0400 From: Tommy Vee User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/20130801 Thunderbird/17.0.8 MIME-Version: 1.0 Newsgroups: comp.lang.python To: Oscar Benjamin Subject: Re: Simplex Algorithm References: <1PRUt.242963$ZD2.40442@fx19.iad> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: python-list@python.org X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Message-ID: Lines: 26 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1378132978 news.xs4all.nl 15880 [2001:888:2000:d::a6]:46266 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:53486 On 9/2/2013 4:06 AM, Oscar Benjamin wrote: > > On Sep 2, 2013 2:31 AM, "Tommy Vee" wrote: > > > > Anyone know where I can get an easy to use Python class or algorithm > for the Simplex optimization algorithm? I've tried the one in the link > below, but I can't figure out if a) I'm using it properly, or b) where > to get the solution. BTW, I tried some test scenarios using MS Excel's > "Solver" and just can't get this algorithm to match Excel's results > (which is spot on). > > > > http://taw9.hubpages.com/hub/Simplex-Algorithm-in-Python > > > > BTW, if I can't something to work, I'm going to be forced to use the > VBA programmatic Excel interface. That wouldn't be too bad, but the data > comes from a DB and getting it properly positioned to use Excel's > "Solver" is very painful. A Python approach would be much cleaner. > > Are you able to use scipy? It has the simplex algorithm (among many > others) in its optimize module: > http://docs.scipy.org/doc/scipy/reference/tutorial/optimize.html > > Oscar > scipy would be another possibility of last resort. I will take a look. Thanks.