cchart.Xbar2: X-bar Shewhart Control Chart for phase II.
In IQCC: Improved Quality Control Charts

Builds the x-bar control chart for phase II.

1	cchart.Xbar2(x, x2bar, sigma, sizes)

`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.

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

Return a x-bar control chart for phase II.

Daniela R. Recchia, Emanuel P. Barbosa

cchart.Xbar1

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data(pistonrings)
stat <- cchart.Xbar1(pistonrings[1:25, ])
cchart.Xbar2(pistonrings[26:40, ], stat[[1]][1], stat[[1]][2])

IQCC documentation built on May 1, 2019, 10:58 p.m.

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