xbarII {IQCC}R Documentation

X-bar Shewhart Control Chart for phase II.

Description

Builds the x-bar control chart for phase II.

Usage

xbarII(x, x2bar, sigma, sizes)

Arguments

x The data to be plotted.
x2bar The mean of means.
sigma The standar deviation of the data.
sizes A value or a vector of values specifying the sample sizes associated with each group.

Details

To use this function it is necessary to have the output given by the function XbarI.

Value

Return a x-bar control chart for phase II.

Author(s)

Daniela R. Recchia, Emanuel P. Barbosa

See Also

xbarI

Examples

data(pistonrings)
xI<-xbarI(pistonrings[1:25,])
xbarII(pistonrings[26:40,],xI[[1]],xI[[2]])

[Package IQCC version 1.0 Index]