Re: R/H axis suddenly disappeared

On Tuesday, 2 February 2021 14:17:59 PST Dave Horsfall wrote:
> Gnuplot 5.4 patchlevel 1 on MacBook Pro Sierra 10.12.6 (updated each 
> week).
> 
> On 1st February (I don't know whether the date is significant) my daily 
> health plot suddenly lost its R/H axis.  I didn't do nuffink...
> 
> Well, there was a MacPorts update that morning, but I didn't see Gnuplot 
> in the list; I guess it's possible that something got borked, but just the 
> R/H axis?  Gnuplot was last updated on 25th Jan, and worked up until now.
> 
> As it was on 31st Jan: http://www.horsfall.org/health.pdf.old (no HTTPS 
> yet).
> 
> Now: http://www.horsfall.org/health.pdf
> 
> Well, all I did was to add an entry for 1st Feb:
> 
>      # Date	Time	Wgt	Gth	Sys	Dia	HR
> 
>      30/1/21	1800	89.9	109	115	72	77
>      31/1/21	1730	88.6	109	118	72	95
> ==> 1/2/21	1830	88.6	109	115	67	82
>      2/2/21	1730	90.3	109	118	60	69
> 
> The error:
> 
>      gnuplot> load 'health.gp'
>  	     "health.gp" line 99: warning: y2 axis range undefined or overflow


Since your script never sets a range for y2 at all that error message
is evidently correct.

I do not understand how the script could ever have worked correctly
without either "set link y2" or "set y2range [min:max]".

Could the script have gotten borked?

	Ethan





> 
> Note that line 99 is actually the last continued line of the "plot" 
> command, which I certainly had not changed:
> 
>      mackie:health dave$ ls -l *.gp
>      -rw-r--r--  1 dave  staff  5511 Sep 27  2019 health.gp
> 
> (Note that the one I attached has potentially sensitive comments removed; 
> it's my personal information, after all, but I'm willing to share the lot 
> with an individual, not the entire list.)
> 
> It's worth noting that the plot has probably saved my life a few times, as 
> I suffer from hypertension (with medication)...
> 
> The script itself is attached (I trust that it's within the guidelines).
> 
> Thanks.
> 
> -- Dave






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