\HeaderA{image-methods}{Display an Image}{image.Rdash.methods}
\aliasA{image}{image-methods}{image}
\keyword{methods}{image-methods}
\begin{Description}\relax
Creates an image for each sample.

\emph{Usage}

\code{
image(x, bg = FALSE, transfo = log2, col = gray((0:64)/64), names = "namepart", xlab = "", ylab = "", ...)
}
\end{Description}
\begin{Arguments}
\begin{ldescription}
\item[\code{x}] object of class \code{\LinkA{DataTreeSet}{DataTreeSet}}.
\item[\code{bg}] logical. If \code{FALSE}, intensities from slot \code{data} will be used;
if \code{TRUE}, background intensities from slot \code{bgrd} will be used.
\item[\code{transfo}] a valid function to transform the data, usually \dQuote{log2}, or \dQuote{0}.
\item[\code{col}] color range for intensities.
\item[\code{names}] optional vector of sample names.
\item[\code{...}] optional arguments to be passed to \code{image}.
\end{ldescription}
\end{Arguments}
\begin{Details}\relax
Creates an image for each array. For \code{bgrd=TRUE} the distribution of the computed
background intensities will be shown; this can be useful to see potential density gradients
caused by hybridization conditions. For the computation of background intensities see function
\code{\LinkA{bgcorrect}{bgcorrect}}; it is suggested to use \code{\LinkA{bgcorrect.mas4}{bgcorrect.mas4}} to identify
density gradients.

For \code{names=NULL} full column names of slot \code{data} will be displayed while for 
\code{names="namepart"} column names will be displayed without name extension. If \code{names}
is a vector of column names, only these columns will displayed as image.
\end{Details}
\begin{Note}\relax
Data must first be attached to class \code{\LinkA{DataTreeSet}{DataTreeSet}} using method \code{\LinkA{attachInten}{attachInten}}.
\end{Note}
\begin{Author}\relax
Christian Stratowa
\end{Author}
\begin{SeeAlso}\relax
\code{\LinkA{image.dev}{image.dev}}, \code{\LinkA{image}{image}}
\end{SeeAlso}

