Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!gegeweb.org!de-l.enfer-du-nord.net!feeder2.enfer-du-nord.net!feeder.erje.net!news-1.dfn.de!news.dfn.de!fu-berlin.de!uni-berlin.de!news.dfncis.de!not-for-mail From: =?ISO-8859-1?Q?Hans-Bernhard_Br=F6ker?= Newsgroups: comp.graphics.apps.gnuplot Subject: Re: Wrong fit direction / zrange / unreadable graph file Date: Thu, 19 May 2011 01:39:17 +0200 Lines: 9 Message-ID: <93j3kjFts6U1@mid.dfncis.de> References: <01ac512a-8031-41f0-a899-0684927f6c32@n10g2000yqf.googlegroups.com> <93c9dhFmvmU1@mid.individual.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Trace: news.dfncis.de 9J6/1r87wiMt2vTtYHkKtwMz2c5cWSxWgqVy7NSTEl6luIXal7CkcDJj1a Cancel-Lock: sha1:wx0/xOPqOyZTy1O27kJugEQPcI8= User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.2.15) Gecko/20110303 Thunderbird/3.1.9 In-Reply-To: <93c9dhFmvmU1@mid.individual.net> Xref: x330-a1.tempe.blueboxinc.net comp.graphics.apps.gnuplot:321 On 16.05.2011 11:34, Ingo Thies wrote: > Well, that's strange. For a linear fit model I wouldn't expect that an > initially zero vertical offset should be a problem. gnuplot's fit model isn't linear, though. I.e. "fit" doesn't assume, nor does it know, whether the model function is a straight line. As far as gnuplot is concerned, the model is an arbitrarily complicated function of one variable and two parameters.