rscala Package

`rscala: Bi-Directional Interface Between R and Scala with Callbacks`

By David B. Dahl

The rscala package provides a two-way bridge between R and Scala enabling a user to exploit each language's respective strengths in a single project. The rscala package transparently brings Scala and Java methods into R as if they were native R functions. Specifically, Scala classes can be instantiated and methods of Scala classes can be called directly. Furthermore, arbitrary Scala code can be executed on the fly from within R, inline Scala functions can be defined, and callbacks to the original R interpreter are supported. Finally, rscala also enables arbitrary R code to be embedded within a Scala application. The rscala package is available on CRAN and requires no special installations or configurations of R or Scala.

Install by executing in R: install.packages("rscala")

Paper submitted to Journal of Statistical Software

Online Supplement:

Code for all examples in paper.
Temperatures webapp from Section 5.2 from the paper.
Source and binary packages on Comprehensive R Archive Network (CRAN).
Scaladoc for embedding R in Scala.
Javadoc for embedding R in Java.