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\name{example1}
\alias{example1}
\docType{data}
\title{
Bivariate twin data, wide-format from Classic Mx Manual
}
\description{
Data set used in some of OpenMx's examples.
}
\usage{data("example1")}
\format{
A data frame with 400 observations on the following variables.
\describe{
\item{\code{IDNum}}{Twin pair ID}
\item{\code{Zygosity}}{Zygosity of the twin pair}
\item{\code{X1}}{X variable for twin 1}
\item{\code{Y1}}{Y variable for twin 1}
\item{\code{X2}}{X variable for twin 2}
\item{\code{Y2}}{Y variable for twin 2}
}
}
\details{
Same as \link{example2} but in wide format instead of tall.
}
\source{
Classic Mx Manual.
}
\references{
The OpenMx User's guide can be found at \url{https://openmx.ssri.psu.edu/documentation/}.
}
\examples{
data(example1)
plot(X2 ~ X1, data = example1)
}
\keyword{datasets}
|
