IQCC: Improved Quality Control Charts

IQCC implements statistical process control charts with exact, Cornish-Fisher corrected, standardized, or simulation-based probability limits. The package covers univariate variable and attribute charts, double-sampling np charts for rare nonconformities, Hotelling T-squared charts, and generalized variance charts for multivariate variability.

Details

Numerical functions for limits, false-alarm risk, average run length, and average sample size are exposed separately from plotting functions so that calculations can be inspected, tested, and reused in simulation studies.

Useful links

• https://github.com/flaviobarros/IQCC

• https://flaviobarros.github.io/IQCC/

• Report bugs at https://github.com/flaviobarros/IQCC/issues

See also

pchart_limits, uchart_limits, dsnp_limits, gv_limits, cchart.R, cchart.DSnp, cchart.GV

Author

Maintainer: Flavio Barros flaviomargarito@gmail.com

Other contributors:

• Emanuel Barbosa [contributor]

• Elias Goncalves [contributor]

• Daniela Recchia [contributor]