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Groups > comp.graphics.apps.gnuplot > #3023

Re: Xtics offset

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Am 16.08.2015 um 01:04 schrieb Janis Papanagnou:
> Some more trial and error gave me these insights:
> 
> In my very first approach (where I started) I had defined
> 
>    set xtics 31536000 offset first 15768000
> 
> which had been fine, until I added a a logarithmic Y-axis
> 
>    set logscale y
> 
> which gave me this error
> 
>    line 0: ytics has y coord of 0; must be above 0 for log scale!
> 
> That error vanished after I removed the 'first' offset specifier
> 
>    set xtics 31536000 offset 5
> 
> which has the reported problem of being dependent of the number of dates on
> the X-axis.
> 
> To sum up: Introduction of the 'logscale' for Y-axis made it impossible to
> use the 'offset first' specifier for the X-axis without getting above error.
> 
> Now I am confused. The defaults for 'ytics' works fine with *linear* Y-axis.
> And the defaults for 'ytics' works also fine with an X-axis *without X-axis
> offset* and *logarithmic* Y-axis. But it does *not* work with X-axis 'offset'
> and logarithmic Y-axis. Note the dependency of X-axis and Y-axis definitions!
> (I abstain to comment on intuitive behaviour here, beyond that the defaults
> seem not be well defined.) It seems in this case I need to specify explicitly
> the 'ytics' to prevent that error wich 'logscale y' and 'xtics offset first'.
> (I couldn't find a working 'ytics' setting, though. Hmm..)

That is a bug, i see the same with gnuplot 5.01.

You can circumvent it by explicitly specifying the y offset in
screen coordinates:


	set offset xtics offset first 35153000, screen 0

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Thread

Xtics offset Janis Papanagnou <janis_papanagnou@hotmail.com> - 2015-08-15 02:05 +0200
  Re: Xtics offset Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2015-08-15 12:34 +0200
    Re: Xtics offset Janis Papanagnou <janis_papanagnou@hotmail.com> - 2015-08-15 12:57 +0200
      Re: Xtics offset Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2015-08-15 21:38 +0200
        [meta] Re: Xtics offset Janis Papanagnou <janis_papanagnou@hotmail.com> - 2015-08-15 23:34 +0200
      Re: Xtics offset Karl-Friedrich Ratzsch <mail.kfr@gmx.net> - 2015-08-16 00:57 +0200
        Re: Xtics offset Janis Papanagnou <janis_papanagnou@hotmail.com> - 2015-08-16 01:15 +0200
          Re: Xtics offset Karl-Friedrich Ratzsch <mail.kfr@gmx.net> - 2015-08-16 01:59 +0200
  Re: Xtics offset Janis Papanagnou <janis_papanagnou@hotmail.com> - 2015-08-16 01:04 +0200
    Re: Xtics offset Karl-Friedrich Ratzsch <mail.kfr@gmx.net> - 2015-08-16 01:11 +0200
      Re: Xtics offset Janis Papanagnou <janis_papanagnou@hotmail.com> - 2015-08-16 01:22 +0200
        Re: Xtics offset Karl-Friedrich Ratzsch <mail.kfr@gmx.net> - 2015-08-16 01:57 +0200
          [meta] Re: Xtics offset Janis Papanagnou <janis_papanagnou@hotmail.com> - 2015-08-16 14:03 +0200
            Re: [meta] Re: Xtics offset Karl-Friedrich Ratzsch <mail.kfr@gmx.net> - 2015-08-16 14:49 +0200
              Re: [meta] Re: Xtics offset Janis Papanagnou <janis_papanagnou@hotmail.com> - 2015-08-16 15:35 +0200
                Re: [meta] Re: Xtics offset Ethan A Merritt <merritt@u.washington.edu> - 2015-08-17 10:26 -0700
                Re: [meta] Re: Xtics offset Janis Papanagnou <janis_papanagnou@hotmail.com> - 2015-08-17 21:27 +0200
        Re: Xtics offset Karl-Friedrich Ratzsch <mail.kfr@gmx.net> - 2015-08-16 02:19 +0200
          Re: Xtics offset Janis Papanagnou <janis_papanagnou@hotmail.com> - 2015-08-16 14:22 +0200

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