LaTeX Typesetting in R doesn't work #375

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1. artemklevtsov commented on Dec 26, 2015

   

   artemklevtsov

   on Dec 26, 2015

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   Should be fixed if add mathjax library to the package and htmlwidgets config.
2. cpsievert commented on Dec 26, 2015

   

   cpsievert

   on Dec 26, 2015

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   Mathjax is too big to bundle with the R package, so we're looking at a situation similar to #302, where we want to conditionally download/include relevant stuff under https://github.com/plotly/plotly.js/tree/master/dist before rendering

   The thing is, with the current interface, there is no way to detect whether MathJax is needed. Maybe we provide a simple function, say

   tex <- function(x) {
     structure(x, class = "LaTeX")
   }

   which could then be used essentially as a flag to include MathJax:

   plot_ly(x = c(1, 2, 3, 4), y = c(1, 4, 9, 16),
           name = tex("\\alpha_{1c}"))

   Any thoughts @chriddyp @cldougl @etpinard?
3. cpsievert

   assigned

   timelyportfolio

   on Mar 11, 2016
4. cpsievert commented on Mar 11, 2016

   

   cpsievert

   on Mar 11, 2016

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   @timelyportfolio a while ago I tried to resolve this in #411. I'm sure you can come up with a better approach :)
5. timelyportfolio commented on Mar 15, 2016

   

   timelyportfolio

   on Mar 15, 2016

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   Would it be reasonable to expect RStudio and rmarkdown availability? If so, perhaps we could leverage the rmarkdown:::pandoc_mathjax_local_path() function or just educate users on mathjax: local option in html_document. Then we wouldn't have to worry about doing all that RStudio does (see lines).

   So, this works for me

   ---
   title: "MathJax Test"
   runtime: shiny
   output:
     html_document:
       mathjax: local
   ---
   
   $$ 
      \frac{d}{dx}\left( \int_{0}^{x} f(u)\,du\right)=f(x).
   $$
   
       ```{r, echo=FALSE} 
       sliderInput("x", label = "Value:",  min = 1, max = 10, value = 5)
   
       renderText({
          input$x
       })
       ```
   

   To confirm local, here is a screenshot of the network request.

   

   Then the trick becomes how do we know to add mathjax if not in rmarkdown. We could employ a method like crosstalk to add dependencies with a add_mathjax() function.
6. cpsievert commented on Mar 15, 2016

   

   cpsievert

   on Mar 15, 2016

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   That would certainly be nice if we could let rmarkdown do its thing in Rmd docs, but unfortunately, plotly.js doesn't seem play nicely.

   ---
   title: "MathJax Test"
   output:
     html_document:
       self_contained: false
       mathjax: local
   ---
   
   $$ 
      \frac{d}{dx}\left( \int_{0}^{x} f(u)\,du\right)=f(x).
   $$
   
   ```{r, message = FALSE} 
   library(plotly)
   plot_ly(x = 1:2, y = 1:2) %>%
     layout(xaxis = list(title = "$x$"))
   ```
   

   Would it be reasonable to expect RStudio and rmarkdown availability?

   I wouldn't mind adding an rmarkdown dependency if need be, but I know there will be Jupyter/IPython/non-RStudio users that will want to generate static HTML that can be viewed locally.

   We also need some way of including geoassets (#356), for local preview, if a geo or choropleth trace type is used. Unfortunately, due to the size of the external files, I think the best way to go about this is to require a clone of plotly.js, or at least a path to its distributed files, and add them add dependencies when need be.

   I was also thinking that, similar to rmarkdown, users should be able to specify whether or not they want to use local MathJax or the cdn, so something like:

   plot_ly(x = 1:2, y = 1:2) %>%
     layout(xaxis = list(title = "$x$")) %>%
     config(mathjax = "local")

   versus

   plot_ly(x = 1:2, y = 1:2) %>%
     layout(xaxis = list(title = "$x$")) %>%
     config(mathjax = "cdn")
7. baptiste commented on Oct 4, 2016

   

   baptiste

   on Oct 4, 2016

   Last edited by baptiste

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   FWIW KaTeX may be a good alternative to Mathjax,

   https://khan.github.io/KaTeX/

   (one of its strengths is that it's light, self-contained and easy to bundle)
8. dswatson commented on Mar 29, 2017

   

   dswatson

   on Mar 29, 2017

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   Any updates on this? I'm a big fan of ggplot2 and plotly, but it's a real shame to lose figure titles, axis labels, and/or legends that use plotmath expressions when attempting to add interactive features with ggplotly. Workaround hacks very welcome.

   👍React with 👍2Reacted by Matthew Wilkins, PhD and Marcel Schilling
9. jackparmer commented on Apr 4, 2017

   

   jackparmer

   on Apr 4, 2017

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   Similar discussion and solution proposal for the offline Python library:
   plotly/plotly.py#515
10. cpsievert commented on Apr 4, 2017

    

    cpsievert

    on Apr 4, 2017

    Last edited by cpsievert

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    I'm likely going to create another R package, which will make easy to control plotly.js dependencies tied to R plotly objects, which will hopefully solve this and #356. The idea is to include just what you need from dist/ (and I might even do minimized bundles for each trace type to help minimize the file size)

    👍React with 👍1Reacted by Jack Parmer
11. jackparmer commented on Apr 5, 2017

    

    jackparmer

    on Apr 5, 2017

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    Any companies out there interested in sponsoring this one?
    https://plot.ly/products/consulting-and-oem/

    @baptiste we looked at KaTeX, but there's still a lot of MathJax functionality that would need to be filled-in. Unfortunately it looks like the project is largely inactive right now.
12. cpsievert

    added a commit that references this issue on Jun 7, 2018

    add support for local MathJax; introduce TeX(); closes #375

    This issue will close once commit 194d435 is merged into the 'master' branch.

    194d435
13. cpsievert

    closed this as completedin 194d435on Jun 7, 2018