rrCC {CC}

R Documentation

Individuals Charts Parameters for Baseline RR Mean and Variability

Description

This function computes control limits for the x-charts for the mean and standard deviation (reciprocal) of R wave to R wave values for heart rate, optionally revising them in the case that individual sample means and/or ranges plot out of the trial control limits.

Usage

rrCC(RR, k=3, revise=TRUE, newdata)

Arguments

RR	a data frame with 2 columns, the first containing rr averages and the second containing rr variances
k	the control chart parameter governing the width of the control limits
revise	if TRUE, mu and sigma are estimated using only range values that plot inside the trial control limits
newdata	a 2 column matrix consisting of data from new subgroups, with averages in the first column and variances in the second column

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

rr.xLR <- rrCC(rr)
plot(rr.xLR)

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