Re: [Gnuplot-info] How to link logarithmic axes?

[theozh <th...@gm...>]

> linked axes are not compatible with log scale
> 
That's unfortunate.
I do not have enough insight into gnuplot why it should not be possible
for logscale.
However, for a simple relative "linked" shift of the log axes the
following should be a workaround using the gnuplot variables GPVAL_Y_MIN
and GPVAL_Y_MAX


##### "link" logarithmic axes
reset

Offset = 0.01  # Log y and y2 axes offset

set xrange [-12:2]

set logscale y
set ytics format "%g" nomirror
set grid ytics
set yrange [*:*]

set logscale y2
set y2tics format "%g" nomirror
set y2range [GPVAL_Y_MIN*Offset:GPVAL_Y_MAX*Offset]

plot 10**x axis x1y1, 10**x axis x1y2
replot        # obviously it needs replot to update the GPVAL values?!