iotools: High-Performance I/O Tools for R

The iotools package provides Input/Output (I/O) intensive data processing in R (R Core Team, 2014). Efficient parsing methods are included to minimize copying and avoid the use of intermediate strings. Methods support “chunk-wise” operations for computing on streaming input including arbitrarily large files. We present a set of examples for iotools, as well as benchmarks comparing similar functions provided in both core-R as well as other contributed packages.