https://castlaboratory.r-universe.devRecent package updates in castlaboratoryR-universehttps://github.com/castlaboratory.pnghttps://castlaboratory.r-universe.devSat, 09 May 2026 00:58:43 GMTleite@castlab.org (André Leite)A comprehensive toolkit for Statistical Process Control (SPC) that combines the rigor of classical Shewhart methodology with modern tidyverse-native interfaces. Provides classical control charts for variables (I-MR, Xbar-R, Xbar-S) and attributes (p, np, c, u), as well as regression-based control charts for processes with trend. Includes Nelson runs tests, Average Run Length (ARL) simulation, process capability indices with bootstrap confidence intervals, Box-Cox transformation guidance, and a clean Phase I / Phase II workflow. All chart objects integrate with broom via 'tidy', 'glance' and 'augment' methods. References: Shewhart (1931, ISBN:0-87389-076-0); Montgomery (2019, ISBN:978-1-119-39930-8); Nelson (1984) <doi:10.1080/00224065.1984.11978921>; Woodall (2000) <doi:10.1080/00224065.2000.11980013>; Box & Cox (1964) <doi:10.1111/j.2517-6161.1964.tb00553.x>.https://github.com/r-universe/castlaboratory/actions/runs/27462661339Sat, 09 May 2026 00:58:43 GMTshewhartr1.3.0successhttps://castlaboratory.r-universe.devhttps://github.com/castlaboratory/shewhartrarl-simulation.Rmdarl-simulation.htmlARL by Monte Carlo simulation2026-05-06 23:51:432026-05-07 19:09:01attributes-charts.Rmdattributes-charts.htmlAttributes charts: p, np, c, u2026-05-06 23:51:432026-05-06 23:51:43covid-recife.Rmdcovid-recife.htmlCase study: epidemiological monitoring (COVID-19, Recife)2026-05-06 23:51:432026-05-09 00:58:43box-cox.Rmdbox-cox.htmlChoosing a transformation: Box-Cox in practice2026-05-06 23:51:432026-05-06 23:51:43getting-started.Rmdgetting-started.htmlGetting started with shewhartr2026-05-06 23:51:432026-05-06 23:51:43memory-based-charts.Rmdmemory-based-charts.htmlMemory-based charts: EWMA and CUSUM2026-05-07 01:41:532026-05-07 15:42:42multivariate-charts.Rmdmultivariate-charts.htmlMultivariate charts: Hotelling T²2026-05-07 02:23:092026-05-07 15:42:42phase1-phase2.Rmdphase1-phase2.htmlPhase I and Phase II2026-05-06 23:51:432026-05-06 23:51:43regression-charts.Rmdregression-charts.htmlRegression-based control charts2026-05-06 23:51:432026-05-09 00:58:43diagnostics.Rmddiagnostics.htmlResidual diagnostics, Tukey style2026-05-06 23:51:432026-05-06 23:51:43variables-charts.Rmdvariables-charts.htmlVariables charts: I-MR, Xbar-R, Xbar-S2026-05-06 23:51:432026-05-06 23:51:43