\HeaderA{init.ctl.index}{Generates co-ordinates of spots.}{init.ctl.index}
\keyword{manip}{init.ctl.index}
\begin{Description}\relax
Generates the 4 co-ordinates of any spots.
\end{Description}
\begin{Usage}
\begin{verbatim}
init.ctl.index(grows, gcols, srows, scols)
\end{verbatim}
\end{Usage}
\begin{Arguments}
\begin{ldescription}
\item[\code{grows}] The row index of the grid.
\item[\code{gcols}] The column index of the grid.
\item[\code{srows}] The row index of the spot within the its grid.
\item[\code{scols}] The column index of the spot within the its grid.
\end{ldescription}
\end{Arguments}
\begin{Value}
a matrix in which each row contains a vector of 4 integer elements
which make up the image coordinates of a gene.
\end{Value}
\begin{Note}\relax
Sorry: No help files yet
\end{Note}
\begin{Author}\relax
Yee Hwa Yang, \email{yeehwa@stat.berkeley.edu}
\end{Author}
\begin{Examples}
\begin{ExampleCode}
   x <- init.ctl.index(1:4, 1:4, 1:2, 15:20)
## Generates the 4 co-ordinates index to spots in the first 2 rows,
## columns 15 to 20 of every print-tips groups.
\end{ExampleCode}
\end{Examples}

