Re: [Gnuplot-info] Error in documentation/bug

[Ethan M. <eam...@gm...>]

On Tuesday, 25 February 2025 23:10:07 PST Dmitry wrote:
> Hi Ethan,
> 
> set term tikz standalone preamble "\\usepackage{derivative}"
> 
> Does not work either, fails with the same error.

I don't know what to say.  It works here.

Is it possible that your file  /usr/share/gnuplot/6.1/lua/gnuplot-tikz.lua
is not current?   It should be 
    pgf.REVISION = "120"
    pgf.REVISION_DATE = "2024/10/14 16:17:00"

Although gnuplot_5.4 works for me also, and the lua file for that is from 2020.
So maybe corrupt rather than out of date?
I can't really think what else to check.
lua version?  I've got Lua 5.4.4  Copyright (C) 1994-2022 Lua.org, PUC-Rio

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
[~/temp] gnuplot

        G N U P L O T
        Version 6.1 last modified 2025-02-19

        Copyright (C) 1986-1993, 1998, 2004, 2007-2025
        Thomas Williams, Colin Kelley and many others

        gnuplot home:     http://www.gnuplot.info
        mailing list:     gnu...@li...
        faq, bugs, etc:   type "help FAQ"
        immediate help:   type "help"  (plot window: hit 'h')

        Terminal type is now qt
gnuplot>  set term tikz standalone preamble "\\usepackage{derivative}"
Terminal type is now 'tikz'
Options are 'latex preamble "\\usepackage{derivative}"  color standalone nogparrows notikzarrows nogppoints picenvironment nooriginreset bitmap rgbimage noclip notightboundingbox noexternalimages '
gnuplot> set output 'foo.tex'
gnuplot> plot sin(x)
gnuplot> quit
[~/temp] pdflatex foo
This is pdfTeX, Version 3.141592653-2.6-1.40.24 (TeX Live 2022/Mageia) (preloaded format=pdflatex)
 restricted \write18 enabled.
entering extended mode
(./foo.tex
    [snip]
Output written on foo.pdf (1 page, 30414 bytes).
Transcript written on foo.log.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

    - Ethan


> 
> $ gnuplot
> 
>      G N U P L O T
>      Version 6.1.0 last modified 2025-02-19
> 
>      Copyright (C) 1986-1993, 1998, 2004, 2007-2025
>      Thomas Williams, Colin Kelley and many others
> 
>      gnuplot home:     http://www.gnuplot.info
>      mailing list:     gnu...@li...
>      faq, bugs, etc:   type "help FAQ"
>      immediate help:   type "help"  (plot window: hit 'h')
> 
>      Terminal type is now qt
> gnuplot> set term tikz standalone preamble "\\usepackage{derivative}"
> 
> Terminal type is now 'tikz'
>           /usr/share/gnuplot/6.1/lua/gnuplot-tikz.lua:1773: bad argument 
> #1 to 'load' (function expected, got string)
> stack traceb
> 
> gnuplot> set term tikz standalone header "\\usepackage{derivative}"
> 
> Terminal type is now 'tikz'
>           /usr/share/gnuplot/6.1/lua/gnuplot-tikz.lua:1773: bad argument 
> #1 to 'load' (function expected, got string)
> stack traceb
> 
> gnuplot> set term cairolatex header "\\usepackage{derivative}"
> 
> Terminal type is now 'cairolatex'
> Options are ' pdf input header "\usepackage{derivative}" blacktext 
> nobackground noenhanced fontscale 0.6 size 5.00in, 3.00in '
> gnuplot>
> 
> 
> 
> 
> On 26.02.2025 02:43, Ethan Merritt wrote:
> > On Tuesday, 25 February 2025 02:15:22 PST Dmitry wrote:
> >> So, documentation says that we can add latex preamble with tikz terminal
> >> as *preamble "<preamble string>".*
> >>
> >> But this actually does not work, it fails with
> >>
> >> /usr/share/gnuplot/6.1/lua/gnuplot-tikz.lua:1773: bad argument #1 to
> >> 'load' (function expected, got string)
> >>
> >> Instead of *preamble "<preamble string>" *one should use *preamble
> >> '<preamble string>' *(single quotes vs double quotes).
> > Remember that inside double quotes backslash is an escape character,
> > so your command needs to be
> >
> >       set term tikz standalone preamble "\\usepackage{derivative}"
> >
> > This has nothing to do with tikz. It is the usual difference between string
> > handling in single vs double quotes.
> >
> > 	Ethan
> >
> >
> >
> >
> >> I'm not sure if its bug or it's wrong documentation. Below I listed the
> >> full console output
> >>
> >> Thanks!
> >>
> >>
> >>> $ gnuplot
> >>>
> >>>      G N U P L O T
> >>>      Version 6.1.0 last modified 2025-02-19
> >>>
> >>>      Copyright (C) 1986-1993, 1998, 2004, 2007-2025
> >>>      Thomas Williams, Colin Kelley and many others
> >>>
> >>>      gnuplot home: http://www.gnuplot.info
> >>>      mailing list: gnu...@li...
> >>>      faq, bugs, etc:   type "help FAQ"
> >>>      immediate help:   type "help"  (plot window: hit 'h')
> >>>
> >>>      Terminal type is now qt
> >>> gnuplot> set terminal lua tikz standalone preamble
> >>> "\usepackage{derivative}"
> >>>
> >>> Terminal type is now 'lua'
> >>>           /usr/share/gnuplot/6.1/lua/gnuplot-tikz.lua:1773: bad
> >>> argument #1 to 'load' (function expected, got string)
> >>> stack traceb
> >>>
> >>> gnuplot> set terminal lua tikz standalone preamble
> >>> '\usepackage{derivative}'
> >>>
> >>> Terminal type is now 'lua'
> >>> Options are 'latex preamble "\\usepackage{derivative}"  color
> >>> standalone nogparrows notikzarrows nogppoints picenvironment
> >>> nooriginreset bitmap rgbimage noclip notightboundingbox noexternalimages '
> >>> gnuplot>
> >> _______________________________________________
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> >> gnu...@li...
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> >>
> >
> >
> >
> 
> 
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