\HeaderA{dimnames}{Retrieve the Dimension Names of an RGList, MAList or SegList Object}{dimnames}
\methaliasA{dimnames.SegList}{dimnames}{dimnames.SegList}
\keyword{array}{dimnames}
\begin{Description}\relax
Retrieve the dimension names of a microarray data object.
\end{Description}
\begin{Usage}
\begin{verbatim}
## S3 method for class 'SegList':
dimnames(segList)
\end{verbatim}
\end{Usage}
\begin{Arguments}
\begin{ldescription}
\item[\code{segList}] \code{SegList}
\end{ldescription}
\end{Arguments}
\begin{Details}\relax
The dimensionnames of an microarray object are the same as those of the most important matrix component of that object.

A consequece is that \code{rownames} and \code{colnames} will work as expected.
\end{Details}
\begin{Value}
Either \code{NULL} or a list of length 2.
If a list, its components are either 'NULL' or a character vector the length of the appropriate dimension of \code{x}.
\end{Value}
\begin{Author}\relax
Gordon Smyth, edited by Mike Smith
\end{Author}
\begin{SeeAlso}\relax
\code{\LinkA{dimnames}{dimnames}} in the base package.
\end{SeeAlso}

