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Newsgroups: comp.graphics.apps.gnuplot
Subject: Re: auto caluclation for data display
Date: Thu, 18 Jun 2015 21:40:05 +0200
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On 18.06.2015 14:01, Syed Jahanzaib wrote:
> greetings all,
>
> I am graphing downloads for the user account, but issue is the divide
> forumla. Is there any method in which gnuplot can auto measure the
> data like if its in KB , it should it in KB, if its in MB, it should
> show MB, if its in GB it should GB or vise verse for TB.

Do you want it for ploting labels at the bars or as ylabel? I think 
there is only one ylabel for one graph.

> at a  moment I am dividing the formula like /1024/1024 to get data in
> GB which have issue that if data is less then GB, it shows 0.xxx

If you need to scale the whole yaxis you can first use the stats command 
to get the maximum of your data.

stats "data.txt" u 1:2
max_y = STATS_max_y

This give you the maximum of column 2 into the variable "max_y"

Than you can work with "if" and "else".
if max_y > a than
	set ylabel 'GB'
	plot "data.txt" u 1:($2/1024/1024)
else{If max_y > b than
	set ylabel 'MB'
	plot "data.txt" u 1:($2/1024)
	else set ylabel 'KB'
	plot "data.txt" u 1:2}

This not the real code for gnuplot, it is only a way to do something 
like you want. For including TB, you need a 4 step "if/else" argument.


Jörg