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From: =?UTF-8?Q?J=c3=b6rg_Buchholz?= <bookwood4new@freenet.de>
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Subject: Re: plot energy level
Date: Mon, 27 Apr 2020 09:56:46 +0200
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On 24.04.2020 18:29, alberto wrote:
> Il giorno giovedì 23 aprile 2020 21:12:37 UTC+2, Jörg Buchholz ha scritto:
>> 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

A other solution is to get the tics from your datafile.

set xrange [0:10]
unset xtics
set grid lt -1
plot 'filename' u (0):4:ytic(sprintf("Level %.0f",$2)) w p


Jörg