\include{zinput} \begin{document}\section{{\tt eidat}: Simulation Data for Ecological Inference}\label{ss:eidat}
\keyword{datasets}{eidat}
\begin{Description}\relax
This dataframe contains a simulated data set to illustrate the models
for ecological inference.
\end{Description}
\begin{Usage}
\begin{verbatim}data(eidat)\end{verbatim}
\end{Usage}
\begin{Format}\relax
A table containing 4 variables ("t0", "t1", "x0", "x1") and 10 
observations.
\end{Format}

\end{document}
