Re: [Gnuplot-info] Multiple sources on a common X axis

[Hans-Bernhard B. <HBB...@t-...>]

Am 01.08.2016 um 10:12 schrieb Robert von Knobloch:
> On 29/07/16 21:23, Hans-Bernhard Bröker wrote:
>> In that case you'll have to decide on an x axis range beforehand, tell
>> gnuplot about your choice,

> I cannot fix the x-axis (it grows).

I didn's say you have to fix it.  But _someone_ has to decide what the 
common axis range for all those data sets is going to be.  Since you 
defined the boundary conditions of the job such there's no way left for 
gnuplot to do it, that someone has to be you, or some program/script you 
write for the job.

gnuplot can only do it across one plot's collection of data sets --- but 
you're dead set on having a multi-plot, so that's out.

And there's no way gnuplot can guess what the data in the 5th plot in a 
mulit-plot will look like, to scale the first plot accordingly, so 
gnuplot doing it automatically for the multiplot is clearly out, too.

So _you_ have to make the decision, before you issue the first plot 
command.  How you arrive at the range to use is for you to figure out. 
The 'stat' command might help, if the data sets remain stable for at 
least as long as the entire command multiplot sequence takes.  Or maybe 
the programs generating those files could put that knowledge somewhere 
for gnuplot to get at.  You may have to make snapshot copies of the data 
files for the duration.