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\name{example2}
\alias{example2}
\docType{data}
\title{
Bivariate twin data, long-format from Classic Mx Manual
}
\description{
Data set used in some of OpenMx's examples.
}
\usage{data("example2")}
\format{
A data frame with 800 observations on the following variables.
\describe{
\item{\code{IDNum}}{ID number}
\item{\code{TwinNum}}{Twin ID number}
\item{\code{Zygosity}}{Zygosity of the twin}
\item{\code{X}}{X variable for twins 1 and 2}
\item{\code{Y}}{Y variable for twins 1 and 2}
}
}
\details{
Same as \link{example1} but in tall format instead of wide.
}
\source{
Classic Mx Manual.
}
\references{
The OpenMx User's guide can be found at https://openmx.ssri.psu.edu/documentation.
}
\examples{
data(example2)
plot(Y ~ X, data = example2)
}
\keyword{datasets}
|
