[Gnuplot-info] Values to be discarded ...

[Dr. I. D. J. <die...@t-...>]

Dear listmembers,
I have a file consisting of columns, say, 1 to 5.
I plot the data via
plot "<filename>" using 1:2 w l lw 2,\
     "<filename>" using 1:3 w l lw 2,\
     "<filename>" using 1:4 w l lw 2,\
     "<filename>" using 1:5 w l lw 2
so far, so good. Now, say, there are no more data in column two above a 
threshold value "x", being "x" an element of column 1:

1   2   3
2   4   5
3   5   7
4   6   6
5   3   4
6       3
7
8

If I try to plot as depicted above, I'll fail as there are no more valid data 
in column 2 above the x-value 5. Is there any "dummy" value available telling 
the plot command to count as a valid element of column (I.e. 2) but not to be 
plotted? Currently I filled in values that are so large that they do not show 
and I extrapolated the curve roughly so it would touch that value - but this 
is not what I'd like to see.

I hope my explanation is sufficiently clear.

Many thanks for your efforts, a happy new Year!

Take care


Dieter Jurzitza


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