[R-pkg-devel] RES: MathJax for Rd files

[Tiago Olivoto]

Dear Wolfgang,
Thank you so much for the awesome package
I've installed mathjaxr and it worked.
I have some more questions, with a short example bellow
I created an equation in my mgidi.R file as follows

#' \loadmathjax
#' \mjsdeqn{MGIDI_i = \sum\limits_{j = 1}^f}

And then I ran devtools::document()
The mgidi.Rd contains

\loadmathjax
\mjsdeqn{MGIDI_i = \sum\limits_{j = 1}^f}

But when I try to preview the current document as HTML, the equation is not
rendered and the help page shows
\loadmathjax \mjsdeqnMGIDI_i = \sum\limits_j = 1^f
The equation is only rendered after I install my package locally with
devtools::install(). Is this an expected behavior?

Another question is regarding more complex formulae.
I tried using
#' \loadmathjax
#' \mjsdeqn{MGID{I_i} = {\left[ {\sum\limits_{j = 1}^f {{{\left( {{F_{ij}} -
{F_j}} \right)}^2}} } \right]^{0.5}}}

Even after installing the package locally the equation is not rendered in
the html help page, which shows the tex command. 
I tested the same equation with https://www.mathjax.org/#demo and it seems
to be ok.
Have I missed anything or used any code not supported by mathjaxr?
Thanks in advance
Olivoto

-----Mensagem original-----
De: Viechtbauer, Wolfgang (SP)
<wolfgang.viechtbauer using maastrichtuniversity.nl> 
Enviada em: quarta-feira, 13 de maio de 2020 04:40
Para: tiagoolivoto using gmail.com; r-package-devel using r-project.org
Assunto: RE: [R-pkg-devel] MathJax for Rd files

Dear Olivoto,

There is a package now for this purpose:

https://cran.r-project.org/package=mathjaxr
https://github.com/wviechtb/mathjaxr

Best,
Wolfgang

>-----Original Message-----
>From: R-package-devel [mailto:r-package-devel-bounces using r-project.org] On 
>Behalf Of Tiago Olivoto
>Sent: Wednesday, 13 May, 2020 8:55
>To: r-package-devel using r-project.org
>Subject: [R-pkg-devel] MathJax for Rd files
>
>Dear all,
>
>I'm not sure if this is the correct place to make this question, but 
>here I am.
>
>I'm trying to use MathJax for html help files in my package metan
>(https://cran.r-project.org/package=metan)
>
>I have success with the following approach:
>
>Including the following call
>
>#'\if{html}{\out{
>
>#'<script id="MathJax-script" async
>
>#'src="https://cdn.jsdelivr.net/npm/mathjax@3.0.5/es5/tex-chtml-full.js
>">
>
>#'  </script>
>
>#'}}
>
>And then typing the equations I need. A simple example bellow
>
>#' \ifelse{html}{\out{\[\sqrt{a^2}\]}}{\deqn{\sqrt{a^2}}}
>
>Is there any way to put "tex-chtml-full.js" locally so that everyone 
>that has my package installed see the equations rendered properly even
offline?
>
>Thanks in advance
>
>Olivoto