[Gnuplot-info] column operation with time data

[agoniabogar <te...@gm...>]

Dear Plotters,

I hope you can help me, I have two diagrams that I would like to match and
generate the average of both the time and the value data.
...
plot "blabla.dat" u ($2+$4)/2:($6+$8)/2
...
This would be the simplest method to plot the average values both in the x
and y axis. But I have elapsed time in the x axis and it seems that the
program does not want to execute the simple column operation in the command
(regarding the time, $2 and $4 columns). The output says " empty xrange. .
."
 I used the set timefmt "%H:%M:%S" and the set xdata time commands prior to
the plot.

Many thanks in advance, 

Agoniabogar


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