New release of pqR — faster, and now compatible with R-2.15.1

October 8, 2016

(This article was first published on R Programming – Radford Neal's blog, and kindly contributed to R-bloggers)

I have released a new version of my “pretty quick” R interpreter, pqR-2016-10-05.

One major change with this version is that pqR, which was based on R-2.15.0, is now compatible with R-2.15.1.  This allows for an increased number of packages in the pqR repository.

This release also has some significant speed improvements, a new form of the “for” statement, for conveniently iterating across columns or down rows of a matrix, and a new, less error-prone way for C functions to “protect” objects from garbage collection. There are also a few bug fixes (including fixes for some bugs that are also in the current R core release).

You can read more in the NEWS file, and get it from

Currently, pqR is distributed in source form only, and so you need to be comfortable compiling it yourself. It has been tested on Linux/Unix systems (with Intel/AMD, ARM, PowerPC, and SPARC processors), on Mac OS X (including macOS Sierra), and on Microsoft Windows (XP, 7, 8, 10) systems.

I plan to soon put up posts with more details on some of the features of this and the previous pqR release, as well as a post describing some of my future plans for pqR.

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