This "rQCC" package constructs robust quality control chart based on the median or Hodges-Lehmann estimator (location) and the median absolute deviation (MAD) or Shamos estimator (scale). These estimators are all unbiased with a sample of finite size. For more details, see Park, Kim, and Wang (2022).
In addition, the "rQCC" package also provides various conventional attribute control charts such as p, np, c, u, g, h, and t charts. For more details on g and h charts, see Park and Wang (2022).
This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government(MSIT) (No. 2022R1A2C1091319).