Quality Control Charts Shewhart quality control charts for continuous, attribute and count data. Cusum and EWMA charts. Operating characteristic curves. Process capability analysis. Pareto chart and cause-and-effect chart. Multivariate control charts. Software Depends: R (>= 2.11), MASS Luca Scrucca <luca@stat.unipg.it> Luca Scrucca <luca@stat.unipg.it> GPL (>= 2) 2011-09-30 application/tgz http://CRAN.R-project.org/package=qcc