This project has moved to https://github.com/graalvm/fastr
FastR is an implementation of the R Language in Java atop Truffle and Graal. Truffle is a framework for building self-optimizing AST interpreters. Graal is a dynamic compiler that is used to generate efficient machine code from partially evaluated Truffle ASTs.
FastR is an open-source effort of Purdue University, Johannes Kepler University Linz, and Oracle Labs.
For more details and instructions for downloading and building the system, please visit the FastR Wiki.