Re: Error in documentation/bug

Hi Ethan,

it turns out that my gnuplot picked up old version of lua. Rebuilding 
with newer lua solved the problem.

Thanks!


On 26.02.2025 10:49, Ethan Merritt wrote:
> 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 So maybe corrupt rather than out of date?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:     [email protected]
>          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:     [email protected]
>>       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: [email protected]
>>>>>       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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>>>
>>>
>>
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>
>
>


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