mathml. Translate R expressions to MathML

Version 1.6: with Prolog interface

mathml allows rendering R terms as pretty mathematical equations, bridging the gap between computational needs, presentation of results, and their reproducibility.

Researchers or teachers can already use RMarkdown to conduct analyses and show results, mathml smoothes this process and allows for integrated calculations and output. The package mathml can help in fact to improve data analyses and statistical reports from an aesthetical perspective, as well as regarding reproducibility of research, by allowing also for a better detection of possible mistakes in R programs.

The package supports both MathML and Latex/MathJax for use in RMarkdown documents, presentations and Shiny Apps.

License

This R package is distributed under a BSD-2 simplified license (see the file LICENSE).

Installation

1. Download and install a recent R from https://www.r-project.org/

2. Download and install a recent RStudio from https://www.rstudio.com/

3. R> install.packages("mathml")

The package depends on R package rolog [https://cran.r-project.org/package=rolog], which itself needs the SWI-Prolog runtime on the system. The latter can be installed either from [https://swi-prolog.org] or by installing R package rswipl [https://cran.r-project.org/package=rswipl].

Example

library(mathml)
term <- quote(a^b + c * (d + 3) - a^2L * (a + d))
mathout(term)

$a^b + c \cdot (d+3.00) - a^2 \cdot (a+d)$

term <- call("^", quote(x), 2L)
mathout(term)

$x^2$

For R package developers

If you use mathml for your own package, please do not "Import" mathml in your DESCRIPTION, but "Depend" on it.

Package: onmathml
Type: Package
Title: A package that uses mathml
...
Depends: 
    R (>= 4.3),
    mathml (>= 1.3)

It's not entirely clear why this is needed.

From Prolog

Installation: pack_install(mathml).

Usage: use_module(library(mathml)).

Example: pl_mathml(sin(x), X).