Learn R Programming

⚠️There's a newer version (0.7.2) of this package.Take me there.

spc (version 0.4.2)

Statistical Process Control -- Collection of Some Useful Functions

Description

Evaluation of control charts by means of the zero-state, steady-state ARL (Average Run Length) and RL quantiles. Setting up control charts for given in-control ARL. The control charts under consideration are one- and two-sided EWMA, CUSUM, and Shiryaev-Roberts schemes for monitoring the mean of normally distributed independent data. ARL calculation of the same set of schemes under drift are added. Other charts and parameters are in preparation. Further SPC areas will be covered as well (sampling plans, capability indices ...).

Copy Link

Version

Install

install.packages('spc')

Monthly Downloads

696

Version

0.4.2

License

GPL (>= 2)

Maintainer

Sven Knoth

Last Published

November 2nd, 2012

Functions in spc (0.4.2)

x.res.ewma.arl

Compute ARLs of EWMA residual control charts
sewma.crit

Compute critical values of EWMA control charts (variance charts)
sewma.arl

Compute ARLs of EWMA control charts (variance charts)
xgrsr.crit

Compute alarm thresholds for Shiryaev-Roberts schemes
xewma.ad

Compute steady-state ARLs of EWMA control charts
xewma.arl

Compute ARLs of EWMA control charts
p.ewma.arl

Compute ARLs of binomial EWMA p control charts
xshewhartrunsrules.arl

Compute ARLs of Shewhart control charts with and without runs rules
xcusum.crit.L0h

Compute the CUSUM reference value k for given in-control ARL and threshold h
xgrsr.arl

Compute (zero-state) ARLs of Shiryaev-Roberts schemes
xgrsr.ad

Compute steady-state ARLs of Shiryaev-Roberts schemes
xewma.crit

Compute critical values of EWMA control charts
xDcusum.arl

Compute ARLs of CUSUM control charts under drift
xewma.sf

Compute the survival function of EWMA run length
xcusum.crit

Compute decision intervals of CUSUM control charts
xDewma.arl

Compute ARLs of EWMA control charts under drift
xcusum.q

Compute RL quantiles of CUSUM control charts
xcusum.sf

Compute the survival function of CUSUM run length
xcusum.crit.L0L1

Compute the CUSUM k and h for given in-control ARL L0 and out-of-control L1
xsewma.crit

Compute critical values of simultaneous EWMA control charts (mean and variance charts)
tol.lim.fac

Two-sided tolerance limit factors
xDshewhartrunsrules.arl

Compute ARLs of Shewhart control charts with and without runs rules under drift
xcusum.ad

Compute steady-state ARLs of CUSUM control charts
xewma.q

Compute RL quantiles of EWMA control charts
phat.ewma.arl

Compute ARLs of EWMA phat control charts
xcusum.arl

Compute ARLs of CUSUM control charts
xDgrsr.arl

Compute ARLs of Shiryaev-Roberts schemes under drift
xsewma.arl

Compute ARLs of simultaneous EWMA control charts (mean and variance charts)