R-qcc is an SPC/SQC plugin for R:
https://bugzilla.redhat.com/show_bug.cgi?id=722640
The spec file is pretty much a rip off of other R plugins - there
doesn't seem to be anything particularly special about this plugin.
I am working on a guide for using R for Six Sigma practitioners, and
this plugin offers lots of stuff Black Belts do. Although it is a
pretty simple install direct from CRAN, it would be nice if readers
could grab it from the repo.
--McD