qicharts2: Quality Improvement Charts

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>].

Package details

AuthorJacob Anhoej [aut, cre]
MaintainerJacob Anhoej <jacob@anhoej.net>
URL https://github.com/anhoej/qicharts2
Package repositoryView on CRAN
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qicharts2 documentation built on July 8, 2021, 5:08 p.m.