I have a file that looks like this:
bandindex: 1
-0.21165 -0.36658 0.28144 0.00000 -24.30536
-0.22193 -0.36065 0.28144 0.01188 -24.30546
-0.23222 -0.35471 0.28144 0.02375 -24.30536
…
-0.21508 -0.35043 -0.12440 2.31382 -24.28355
-0.21336 -0.35851 -0.13256 2.32543 -24.28356
-0.21165 -0.36658 -0.14072 2.33703 -24.28353
bandindex: 2
-0.21165 -0.36658 0.28144 0.00000 -24.30536
-0.22193 -0.36065 0.28144 0.01188 -24.30546
-0.23222 -0.35471 0.28144 0.02375 -24.30536
…
Columns 4 and 5 hold the data I want to plot. Column 4 increases
monotonically, then jumps back to 0 and starts increasing again. These
“logical blocks” are delimited by the “bandindex“ lines.
If I plot this as “p 'file' u 4:5 w p”, everything works fine. But what
I would like to do is plot it with lines; then I get diagonal lines
through my plot whenever column 4 jumps. How can I avoid these lines in
a comfortable way?
Of course I can do “p "<perl -pe 's/band.*//' file" u 4:5 w l”, then the
“logical blocks” become “gnuplot blocks” suppressing the diagonal lines.
But I do this a lot interactively so that would be a pain to type. It
is also not practical for me to change the format of the file.
One way that I could imagine this to work is if I could tell gnuplot
that lines "*band*" should delimit blocks (or lines containing
non-numeric data, say).
Another way would be if I could define an “input filter” to be applied
to all data files.
Is anything like that possible in gnuplot?
Elias
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