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From: =?UTF-8?Q?J=c3=b6rg_Buchholz?= <bookwood4new@freenet.de>
Newsgroups: comp.graphics.apps.gnuplot
Subject: Re: plot energy level
Date: Thu, 23 Apr 2020 21:12:35 +0200
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On 23.04.20 10:50, alberto wrote:
> Il giorno giovedì 23 aprile 2020 07:13:30 UTC+2, Jörg Buchholz ha
> scritto:
>> On 22.04.2020 17:42, alberto wrote:
>> 
>>> 
>>> plot 'eigenval_TPP_02_on_MSN.txt'  using (2):($4) with boxes lc
>>> rgb '#FF0000' lw 2 title "visudyne 01"
>>> 
>>> 
>>> set term wxt enhanced persist replot
>>> 
>>> I would plot
>>> 
>>> _____  level1
>>> 
>>> _____  level2
>>> 
>>> _____  level3
>>> 
>> 
>> I'm not sure, you want to have something like this?
>> 
>> set errorbars small plot 'eigenval_TPP_02_on_MSN.txt' using
>> (2):4:(2) with xerrorbar
>> 
>> 
>> Jörg
> 
> Hi, thanks for your reply I would plot something like this 
> https://www.google.com/url?sa=i&url=https%3A%2F%2Fwww.chemguide.co.uk%2Fatoms%2Fproperties%2F&psig=AOvVaw2c0vXGdXEL5vYU5kWljcYb&ust=1587717949253000&source=images&cd=vfe&ved=0CAIQjRxqFwoTCJD9-raU_ugCFQAAAAAdAAAAABAN
>
>  where the horizontal lines are my energy values

set xrange [-10:10]
set style textbox opaque
plot 'eigenval_TPP_02_on_MSN.txt' u (0):4:(10) w xerrorbar pt 0 t
"visudyne 01",\
'' u (0):4:(sprintf("Level %.0f",$2)) w labels boxed center offset first
-5 notitle

Then you have horizontal lines from -10 to 10 at your level (given in
colloumn 4) and a label "Level 1 ...." at the horizontal lines.

Jörg