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Groups > comp.graphics.apps.gnuplot > #3789
| From | Jörg Buchholz <bookwood4new@freenet.de> |
|---|---|
| Newsgroups | comp.graphics.apps.gnuplot |
| Subject | Re: can I fit two columns when I use timefmt |
| Date | 2017-10-24 14:19 +0200 |
| Organization | A noiseless patient Spider |
| Message-ID | <osnb4k$qib$1@dont-email.me> (permalink) |
| References | <alpine.WNT.2.20.1710241324490.5548@dhcp3-6> |
On 24.10.2017 13:30, Jean-Pierre Coulon wrote: > I have a datafile with lines like 171023_15h11m59s150 <value2> <value3>. > I know how to plot columns 2 and 3 using set xdata time; set timefmt > "%y%m%d_%Hh%Mm%Ss" You plot value2 and value3 by using value1 (your time data) as x value? plot 'datafile' u 1:2, '' u 1:3 > My model is a = .028; b=.04; model(x) = a*x + b. When I say > fit modele(x) "mystuff.txt" using 2:3 via a, b I obtain: No data to fit Here you use value2 as xdata and they don't have a timeformat. > What is the right way to do? Before fitting 2:3 unset xdata time by using set xdata Jörg
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can I fit two columns when I use timefmt Jean-Pierre Coulon <coulon@cacas.pam.obs-nice.fr> - 2017-10-24 13:30 +0200
Re: can I fit two columns when I use timefmt Jörg Buchholz <bookwood4new@freenet.de> - 2017-10-24 14:19 +0200
Re: can I fit two columns when I use timefmt Jean-Pierre Coulon <coulon@cacas.pam.obs-nice.fr> - 2017-10-24 15:13 +0200
Re: can I fit two columns when I use timefmt Karl Ratzsch <mail.kfr@gmx.net> - 2017-10-24 16:04 +0200
Re: can I fit two columns when I use timefmt Jean-Pierre Coulon <coulon@cacas.pam.obs-nice.fr> - 2017-10-25 08:10 +0200
Re: can I fit two columns when I use timefmt Karl Ratzsch <mail.kfr@gmx.net> - 2017-10-25 09:18 +0200
Re: can I fit two columns when I use timefmt Jean-Pierre Coulon <coulon@cacas.pam.obs-nice.fr> - 2017-10-25 14:35 +0200
Re: can I fit two columns when I use timefmt Jörg Buchholz <bookwood4new@freenet.de> - 2017-10-25 07:43 +0200
Re: can I fit two columns when I use timefmt Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2017-10-25 01:01 +0200
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