Statistical Process Control


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Documentation for package ‘spc’ version 0.21

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sewma.arl Compute ARLs of EWMA control charts (variance charts)
sewma.crit Compute critical values of EWMA control charts (variance charts)
tol.lim.fac Two-sided tolerance limit factors
xcusum.ad Compute steady-state ARLs of CUSUM control charts
xcusum.arl Compute ARLs of CUSUM control charts
xcusum.crit Compute decision intervals of CUSUM control charts
xewma.ad Compute steady-state ARLs of EWMA control charts
xewma.arl Compute ARLs of EWMA control charts
xewma.crit Compute critical values of EWMA control charts