qicharts2
swMATH28949CRANqicharts2MaRDI QIDQ40663
Quality Improvement Charts
Last update: 21 August 2023
Copyright license: GNU General Public License, version 3.0
Software version identifier: 0.7.2, 0.1.1, 0.2.0, 0.2.1, 0.2.3, 0.3.0, 0.4.0, 0.5.1, 0.6.0, 0.6.1, 0.7.1, 0.7.4
Source code repository: https://github.com/cran/qicharts2
Functions for making run charts, Shewhart control charts and Pareto charts for continuous quality improvement. Included control charts are: I, MR, Xbar, S, T, C, U, U', P, P', and G charts. Non-random variation in the form of minor to moderate persistent shifts in data over time is identified by the Anhoej rules for unusually long runs and unusually few crossing [Anhoej, Olesen (2014) <doi:10.1371/journal.pone.0113825>]. Non-random variation in the form of larger, possibly transient, shifts is identified by Shewhart's 3-sigma rule [Mohammed, Worthington, Woodall (2008) <doi:10.1136/qshc.2004.012047>].
