\HeaderA{plot.mona}{Banner of Monothetic Divisive Hierarchical Clusterings}{plot.mona}
\keyword{cluster}{plot.mona}
\keyword{hplot}{plot.mona}
\begin{Description}\relax
Creates the banner of a \code{mona} object.
\end{Description}
\begin{Usage}
\begin{verbatim}
## S3 method for class 'mona':
plot(x, main = paste("Banner of ", deparse(x$call)),
          sub = NULL, xlab = "Separation step",
          col = c(2,0), axes = TRUE, adj = 0,
          nmax.lab = 35, max.strlen = 5, ...)
\end{verbatim}
\end{Usage}
\begin{Arguments}
\begin{ldescription}
\item[\code{x}] an object of class \code{"mona"}, typically created by
\code{\LinkA{mona}{mona}(.)}.
\item[\code{main,sub}] main and sub titles for the plot, with convenient
defaults.  See documentation in \code{\LinkA{plot.default}{plot.default}}.
\item[\code{xlab}] x axis label, see \code{\LinkA{title}{title}}.
\item[\code{col,adj}] graphical parameters passed to \code{\LinkA{bannerplot}{bannerplot}()}.
\item[\code{axes}] logical, indicating if (labeled) axes should be drawn.
\item[\code{nmax.lab}] integer indicating the number of labels which is
considered too large for labeling.
\item[\code{max.strlen}] positive integer giving the length to which
strings are truncated in labeling.
\item[\code{...}] further graphical arguments are passed to
\code{\LinkA{bannerplot}{bannerplot}()} and \code{\LinkA{text}{text}}.
\end{ldescription}
\end{Arguments}
\begin{Details}\relax
Plots the separation step at which clusters are splitted.  The
observations are given in the order found by the \code{mona}
algorithm, the numbers in the \code{step} vector are represented as
bars between the observations.

When a long bar is drawn between two observations,
those observations have the same value for each variable.
See chapter 7 of Kaufman and Rousseeuw (1990).
\end{Details}
\begin{Section}{Side Effects}
A banner is plotted on the current graphics device.
\end{Section}
\begin{Note}\relax
In the banner plot,
observation labels are only printed when the number of observations is
limited less than \code{nmax.lab} (35, by default), for readability.
Moreover, observation labels are truncated to maximally
\code{max.strlen} (5) characters.
\end{Note}
\begin{References}\relax
see those in \code{\LinkA{plot.agnes}{plot.agnes}}.
\end{References}
\begin{SeeAlso}\relax
\code{\LinkA{mona}{mona}}, \code{\LinkA{mona.object}{mona.object}}, \code{\LinkA{par}{par}}.
\end{SeeAlso}