[R] RMarkdown vignettes v. Jupyter notebooks?

Duncan Murdoch murdoch@dunc@n @end|ng |rom gm@||@com
Thu Oct 11 14:36:20 CEST 2018 

On 11/10/2018 7:18 AM, Ista Zahn wrote:
> Hi Spencer,
> 
> On Thu, Oct 11, 2018 at 5:08 AM Spencer Graves
> <spencer.graves using effectivedefense.org> wrote:
>>
>> Hello:
>>
>>
>>         What are the differences between Jupyter notebooks and RMarkdown
>> vignettes?
> 
> Here are some of the main differences I'm aware of:
> 
> Rmarkdown files include code and prose. The results produced by the
> code do not appear in the Rmarkdown file; instead, the file must be
> processed and typeset to produce a .pdf or .html (etc.) file that
> includes those results. Jupyter notebooks dispense with with
> processing step: output is displayed directly in the notebook. That
> is, a notebook includes code, prose, and results, while an Rmarkdown
> file includes only code and prose.

RStudio can display the output mixed in with the text in the editor.

> 
> Rmarkdown allows control over the inclusion of code and results, and
> over how the results are displayed via header arguments. There is no
> such thing in Jupyter notebooks. Controlling the precise appearance of
> a document produced by Jupyter is much more difficult. Going farther,
> one can even say that Jupyter notebooks are designed primarily to be
> read as Jupyter notebooks; exporting to other formats is kind of an
> afterthought. In contrast, Rmarkdown is designed to produce the final
> readable result in another format (.html or .pdf typically).
> 
> Rmarkdown is based on markdown, a human readable markup language,
> Jupyter notebooks are based on JSON, a data interchange format common
> on the web. This means that Rmarkdown files can be easily edited using
> any text editor you like. The same is not true of Jupyter notebooks.
> While you can of course edit the JSON directly, the format is designed
> to be written and read by a computer; editing it yourself is not easy.
> 
> Rmarkdown is specific to R (I guess there is some basic support in
> knitr for other languages, but in my experience it never worked well)
> while Jupyter notebooks are language agnostic and "kernels" exist for
> a large number of programming languages. However, each Jupyter
> notebook can use only one kernel; you can't easily have R and Python
> code in the same notebook.
> 
> Jupyter notebooks typically run in your browser where the actual text
> editing features are somewhat limited. Rmarkdown is typically run in
> an editor such as Emacs or Rstudio where editing and project support
> is much better and greater customization may be possible. You can work
> indirectly with Jupyter notebooks in Emacs
> (https://github.com/millejoh/emacs-ipython-notebook) and perhaps other
> editors as well; this goes some way toward escaping the tyranny of the
> browser but is more fragile and difficult to get working compared to
> Rmarkdown.
> 
> Because Jupyter uses a web-based client-server model, it is easy to
> provide live interactive notebooks on your website (see e.g.,
> https://github.com/jupyterhub/binderhub). As far as I know this is not
> currently possible with Rmarkdown.

There are ways to put Shiny apps into Rmarkdown documents; see 
<https://beta.rstudioconnect.com/content/2671/Combining-Shiny-R-Markdown.html>. 
  Other than my two notes above, your comments about Rmarkdown seem 
right on the mark.

Duncan Murdoch

> 
>>
>>
>>         I'm trying to do real time monitoring of the broadcast quality of
>> a radio station, and it seems to me that it may be easier to do that in
>> Python than in R.[1]  This led me to a recent post to
>> "python-list using python.org" that mentioned "Jupyter, Mathematica, and the
>> Future of the Research Paper"[2] by Paul Romer, who won the 2018 Nobel
>> Memorial Prize in Economics only a few days ago.  In brief, this article
>> suggests that Jupyter notebooks may replace publication in refereed
>> scientific journals as the primary vehicle for sharing scientific
>> research, because they make it so easy for readers to follow both the
>> scientific and computational logic and test their own modifications.
>>
>>
>>         A "Jupyter Notebook Tutorial: The Definitive Guide"[3] suggested
>> I first install Anaconda Navigator.  I got version 1.9.2 of that.  It
>> opens with options for eight different "applications" including
>> JupyterLab 0.34.9, Jupyter Notebook 5.6.0, Spyder 3.3.1 (an IDE for
>> Python), and RStudio 1.1.456.
>>
>>
>>         This leads to several questions:
>>
>>
>>               1.  In general, what experiences have people had with
>> Jupyter Notebooks, Anaconda Navigator, and RMarkdown vignettes in
>> RStudio, and the similarities and differences?  Do you know any
>> references that discuss this?
> 
> I've used both extensively, and noted the differences I've discovered above.
> 
>>
>>
>>               2.  More specifically, does it make sense to try to use
>> RStudio from within Anaconda Navigator, or is one better off using
>> RStudio as a separate, stand alone application -- or should one even
>> abandon RStudio and run R instead from within a Jupyter Notebook? [I'm
>> new to this topic, so it's possible that this question doesn't even make
>> sense.]
> 
> The only advantage I can think of to using Rstudio via Anaconda is
> that you could use conda environments to maintain different versions
> or R and/or R packages for different projects.
> 
> You'll have to weigh the pros and cons to decide whether to switch
> from Rstudio to Jupyter notebooks. Depending on what you want to do
> there are both advantages and disadvantages, as discussed above.
> 
> Finally, I have to give a plug for a couple of related tools that I
> find very useful.
> 
> Emacs org-mode https://orgmode.org/ gives you the best of both worlds:
> notebooks unconstrained by the browser that can include code in
> multiple languages, header arguments, excellent export support, etc.
> It is superior to both Jupyter and Rmarkdown, except that support only
> exists in Emacs.
> 
> Jupytext (https://github.com/mwouts/jupytext) is another way to have
> it all, by allowing you to edit in markdown or Rmarkdown, and
> auto-generating a notebook and possibly other formats for you. I've
> only recently started experimenting with it, but so far I like it a
> lot.
> 
> Best,
> Ista
>>
>>
>>         Thanks,
>>         Spencer Graves
>>
>>
>> [1] If you have ideas for how best to do real time monitoring of
>> broadcast quality of a radio station, I'd love to hear them.  I need
>> software that will do that, preferably something that's free, open
>> source.  The commercial software I've seen for this is not adequate for
>> my purposes, so I'm trying to write my own.  I have a sample script in
>> Python that will read a live stream from a radio tuner and output a
>> *.wav of whatever length I want, and I wrote Python eight years ago for
>> a similar real time application.  I'd prefer to use R, but I don't know
>> how to get started.
>>
>>
>> [2] 2018-04-13:
>> "https://paulromer.net/jupyter-mathematica-and-the-future-of-the-research-paper".
>> This further cites a similar article in The Atlantic from 2018-04-05:
>> "www.theatlantic.com/science/archive/2018/04/the-scientific-paper-is-obsolete/556676".
>>
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> 
> ______________________________________________
> R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
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> and provide commented, minimal, self-contained, reproducible code.
>

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