\Header{plants}{Results from an Experiment on Plant Growth}
\keyword{datasets}{plants}
\begin{Usage}
\begin{verbatim}data(plants)\end{verbatim}
\end{Usage}
\begin{Format}
A data frame of 30 cases on 2 variables.
\Tabular{rll}{
[, 1] & weight & numeric \\{}
[, 2] & group  & factor
}
The levels of \texttt{group} are `ctrl', `trt1', and `trt2'.\end{Format}
\begin{Description}
Results from an experiment to compare yields (as measured by dried
weight of plants) obtained under a control and two different
treatment conditions.\end{Description}
\begin{Source}
Dobson, A. J. (1983).
\emph{An Introduction to Statistical Modelling}.
London: Chapman and Hall.\end{Source}
\begin{Examples}
\begin{ExampleCode}
## One factor ANOVA example from Dobson's book, cf. Table 7.4:
data(plants)
anova(lm(weight ~ group, data = plants))
\end{ExampleCode}
\end{Examples}

