% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/cchart.Xbar2.R
\name{cchart.Xbar2}
\alias{cchart.Xbar2}
\title{X-bar Shewhart Control Chart for phase II.}
\usage{
cchart.Xbar2(x, x2bar, sigma, sizes)
}
\arguments{
\item{x}{The data to be plotted.}

\item{x2bar}{The mean of means.}

\item{sigma}{The standar deviation of the data.}

\item{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.
}
\description{
Builds the x-bar control chart for phase II.
}
\details{
To use this function it is necessary to have the output given by the
function XbarI.
}
\examples{

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

}
\seealso{
\link{cchart.Xbar1}
}
\author{
Daniela R. Recchia, Emanuel P. Barbosa
}