\HeaderA{gridr}{Row and Column Positions on Microarray}{gridr}
\aliasA{gridc}{gridr}{gridc}
\aliasA{spotc}{gridr}{spotc}
\aliasA{spotr}{gridr}{spotr}
\keyword{IO}{gridr}
\begin{Description}\relax
Grid and spot row and column positions.
\end{Description}
\begin{Usage}
\begin{verbatim}
gridr(layout)
gridc(layout)
spotr(layout)
spotc(layout)
\end{verbatim}
\end{Usage}
\begin{Arguments}
\begin{ldescription}
\item[\code{layout}] list with the components \code{ngrid.r}, \code{ngrid.c}, \code{nspot.r} and \code{nspot.c}
\end{ldescription}
\end{Arguments}
\begin{Value}
Vector of length \code{prod(unlist(layout))} giving the grid rows (\code{gridr}), grid columns (\code{gridc}), spot rows (\code{spotr}) or spot columns (\code{spotc}).
\end{Value}
\begin{Author}\relax
Gordon Smyth
\end{Author}