xLRCC: Computing x and LR-chart Parameters

Description Usage Arguments Value Author(s) References See Also Examples

Description

This function computes control limits for the x and LR-charts, optionally revising them in the case that individual sample means and/or ranges plot out of the trial control limits.

Usage

1
xLRCC(qc.obj, k=3, sigma, mu, revise=TRUE, newdata)

Arguments

qc.obj

an object of class CC

k

the control chart parameter governing the width of the control limits

sigma

(optional) an estimate of the in-control standard deviation

mu

(optional) an estimate of the in-control mean

revise

if TRUE, mu and sigma are estimated using only range values that plot inside the trial control limits

newdata

an n-vector consisting of data from new subgroups

Value

an object of class "CC"

Author(s)

W.J. Braun

References

Montgomery, D.C. (2000) Introduction to Statistical Quality Control, Wiley

See Also

plot.CC

Examples

1
2
rr.xLR <- xLRCC(rr$Avg)
plot(rr.xLR)

CC documentation built on Aug. 27, 2019, 9:02 a.m.

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