cchart.S: S Control Chart.
In flaviobarros/IQCC: Improved Quality Control Charts

Description Usage Arguments Details Value Author(s) Examples

This function builds a S control chart.

1	cchart.S(x, type = "n", m = NULL)

`x`	The data to be plotted.
`type`	A character string specifying the type of S control chart to be plotted where "n" plots a S chart with normalized probability limits and "e" plots a S chart with exact limits.
`m`	The sample sizes. Only necessary in the control chart with exact (probability) limits.

The exact limits are the alpha/2 and 1-alpha/2 quantiles of the S distribution which is proportional to the square root of a chi-square distribution.

Return a S control chart.

Daniela R. Recchia, Emanuel P. Barbosa

data(softdrink)
#S chart with normalized probability limits
cchart.S(softdrink, type = "n")
#S chart with exact probability limits
cchart.S(softdrink, type = "e", 10)