[Gnuplot-info] Both positive and negative log y axis in same plot

[somesh <som...@gm...>]

Hi,

I have a data file like this:
#x  y
1   34
2   450
3   -987
4   20045
5   -1003
6   -30

For only positive values, just "logscale y" is fine. 
For only negative values, I can use a reversed logscale:
--
set logscale y
set yrange [ymin:ymax] reverse
plot file  u 1:(-$2) axis x1y1 t "Y" w linespoints
--

But how do I plot both positive and negative values in same plot? 
I want to place the x axis at the center of y axis; positive log scale (for
positive values) above the x axis, and reversed logscale (for negative
values) below the x axis.

Is it possible?

Thanks,
Somesh



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