X-Received: by 10.200.36.227 with SMTP id t32mr1126766qtt.42.1515119720783; Thu, 04 Jan 2018 18:35:20 -0800 (PST) Path: csiph.com!weretis.net!feeder6.news.weretis.net!feeder.usenetexpress.com!feeder-in1.iad1.usenetexpress.com!border1.nntp.dca1.giganews.com!nntp.giganews.com!g35no619121qtk.1!news-out.google.com!t48ni225qtc.1!nntp.google.com!peer01.iad!feed-me.highwinds-media.com!news.highwinds-media.com!post01.iad!fx34.iad.POSTED!not-for-mail Subject: Re: Looking for simple brute force solution Newsgroups: comp.programming References: <87shbm8igl.fsf@bsb.me.uk> <74qs4dh6cdagjfkm9loottmbpudeq65hj2@4ax.com> From: Richard Damon User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:52.0) Gecko/20100101 Thunderbird/52.5.2 MIME-Version: 1.0 In-Reply-To: Lines: 24 Message-ID: X-Complaints-To: abuse@easynews.com Organization: Forte - www.forteinc.com X-Complaints-Info: Please be sure to forward a copy of ALL headers otherwise we will be unable to process your complaint properly. Date: Thu, 4 Jan 2018 21:35:19 -0500 X-Received-Bytes: 1989 X-Received-Body-CRC: 3337554815 Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Original-Bytes: 1845 Xref: csiph.com comp.programming:8268 On 1/4/18 4:50 PM, root wrote: > root wrote: >> >> We'll see how the case currently running turns out. I only have to work >> out the solution for four or five cases then use that solution to >> unravel data for about 420 data sets. >> > > I was surprised to find that only one solution exists to the problem. > I let the program run through all cases and it finished in a little > over 4 minutes. It ran through 3,486,784,401 (3.5B) cases. > > I really don't like the results. I'll have to ponder that before > continuing. > Due to the rounding issue, one may be a bit better than another, but you should be able to replace any running sum by the values that make it up, as they should be about equal, as that was part of the definition of being a running sum. If that isn't happening, then you are just running into the issue of an under constrained fitting operation, you can get an answer, but it might not really mean anything.