[Rotidpor]

Hello everyone.


I started using gnuplot because it is a convenient tool to plot data. Basically, you just have to type a line or two in a terminal to have your data plotted.
Yet I don't understand the syntax, I found a way to plot my residuals using an openfoam command which extracts the data in my log file and puts it in a single column text file. This way I can tell gnuplot to plot it correctly using simple commands.
This is what I do :


foamLog -n "name of my log file"
gnuplot
plot './Uz_0'


It works well for single column data files created by foamLog. Now my problem is that I want to do the same with probes. Often, my probe files are two columns files, time/iteration versus quantity of interest. But for the velocity, the file is much more complicated with "(" and ")" and four columns.


Is there a simple way to tell gnuplot how to plot a two column file ? Is there an openFoam utility that can convert the velocity probe file into something more manageable like several one column files, as foamLog does for the logfile ?


Thank you all for any input.