qcc

An R package for quality control charting and statistical process control.

qcc animation


The qcc package provides quality control tools for statistical process control:

  • 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.

Installation

You can install the released version of qcc from CRAN:

or the development version from GitHub:

# install.packages("devtools")
devtools::install_github("luca-scr/qcc", build = TRUE, build_opts = c("--no-resave-data", "--no-manual"))

Usage

Usage of the main functions and some examples are included in Scrucca (2004). The vignette A quick tour of qcc is also available with the command:

vignette("qcc")

or through the GitHub web page of the package at https://luca-scr.github.io/qcc/.

References

Montgomery, D.C. (2009) Introduction to Statistical Quality Control, 6th ed. New York: John Wiley & Sons.

Scrucca, L. (2004) qcc: an R package for quality control charting and statistical process control. R News 4/1, 11-17.