Analysis of R Code for Reproducible Research and Code Comprehension

Tools for analyzing R expressions or blocks of code and determining the dependencies between them. It focuses on R scripts, but can be used on the bodies of functions. There are many facilities including the ability to summarize or get a high-level view of code, determining dependencies between variables, code improvement suggestions.


Changes in version 0.4.3 (2016-08-25) Bugfixes * Change default handling of @ function as accessor operator similar to $ uses dollarhandler by default.

Changes in version 0.4.1 (2016-03-14) Bugfixes * default loop handler now recognizes "i" spot as output Minor API changes * created non-default ifforcomp if handler reports all inputs used within a conditional, but not conditionally created outputs, as suggested by Nick Ulle for use in compiler buildling.

Reference manual

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0.6.5 by Gabriel Becker, 4 years ago

Report a bug at

Browse source code at

Authors: Duncan Temple Lang , Roger Peng , Deborah Nolan , Gabriel Becker

Documentation:   PDF Manual  

GPL license

Imports codetools, graph, XML, utils

Depends on methods

Suggests Rgraphviz, RUnit, knitr, highlight, RJSONIO, RCurl, Rcpp

Imported by histry, roprov, trackr.

See at CRAN