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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.