IQCC (version 1.0)

xbarII: 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.

Value

• Return a x-bar control chart for phase II.

Details

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

See Also

xbarI

Examples

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