[Gnuplot-info] labelling dates on x and corresponding numbers on x2 axis

[lambert <van...@il...>]

Hi,

I've read through the mailing list and I'm wondering how to have the two
axes x and x2 aligned, although the are not meant to be, standard.

i'm using gnuplot 4.2 now.

I have two sets of data: (time,data_value) and (time,some_tag)
 
The idea is to put the time label on the bottom and the corresponding
'some_tags' on the top (x2) axis.
Using the standard gnuplot settings my 'some_tag' of 04h00 shows up at 05h14
(for instance).

The 'autoscale fix' option or the 'set xrange ; set x2range' option won't do
when you use the zooming features of the x11 terminal.

The only option I see sofar is to manipulate/extrapolate both data sets to
have mutual extends, but when zooming, this will fail again.

Can someone give a comment/tip on this subject? I would guess an 'alignment'
feature in a future gnuplot would be of common use to many.

thanks,
Lambert
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