Re: [RFC] ob-reticulate: R+Python interface from Babel

[Kyle Andrews <kyle.c.andrews@gmail.com>]

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Hi Jack,

As a frequent reticulate user I am very excited to see this patch. I hope
others feel the same and it gets included into org mode as I cannot wait to
use it.

Best Regards,
Kyle

On Mon, Aug 24, 2020, 11:28 Jack Kamm <jackkamm@gmail.com> wrote:

> Hi all,
>
> Reticulate is an R package for interfacing between R and Python. It allows
> accessing objects in a Python session from R and vice versa. See
> https://rstudio.github.io/reticulate/ for more info about it.
>
> I've written a small patch for using reticulate from org-babel. It allows
> creating a source block of lang "reticulate", which behaves as Python for
> font highlighting and editing, but is executed in an R session via
> reticulate.
>
> I'm wondering whether this should go into org-mode, or whether to package
> this separately. I'm also curious whether this would be useful to anyone
> here. Any feedback is appreciated.
>
> The main advantage of reticulate is being able to access Python objects
> directly from R and vice versa, without having to write them to a separate
> file or pass them through the ":var" header argument. For example, we could
> do the following:
>
> #+begin_src reticulate :session
>   import pandas as pd
>
>   fib = [0, 1]
>   for _ in range(10):
>       fib.append(fib[-1] + fib[-2])
>
>   df = pd.DataFrame({
>       "i": list(range(len(fib))),
>       "F_i": fib
>   })
> #+end_src
>
> #+begin_src R :session :results graphics value file :file fig.png
>   library(reticulate)
>   with(py$df, plot(i, F_i))
> #+end_src
>
> Reticulate source blocks support both "value" and "output" results, and
> even supports graphics with matplotlib. It's primarily intended to be used
> in sessions, and the ":session" header argument should match between
> reticulate and R source blocks.
>
> Cheers,
> Jack
>
>

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