\HeaderA{cdfGetGroups}{Gets a subset of groups in a CDF structure}{cdfGetGroups}
\keyword{programming}{cdfGetGroups}
\keyword{internal}{cdfGetGroups}
\begin{Description}\relax
Gets a subset of groups in a CDF structure.

This \code{\LinkA{function}{function}} is design to be used with \code{\LinkA{applyCdfGroups}{applyCdfGroups}}()
on an Affymetrix Mapping (SNP) CDF \code{\LinkA{list}{list}} structure.
\end{Description}
\begin{Usage}
\begin{verbatim}cdfGetGroups(groups, which, ...)\end{verbatim}
\end{Usage}
\begin{Arguments}
\begin{ldescription}
\item[\code{groups}] A \code{\LinkA{list}{list}} of groups.
\item[\code{which}] An \code{\LinkA{integer}{integer}} or \code{\LinkA{character}{character}} \code{\LinkA{vector}{vector}} of groups be returned.
\item[\code{...}] Not used.
\end{ldescription}
\end{Arguments}
\begin{Value}
Returns a \code{\LinkA{list}{list}} structure of groups.
\end{Value}
\begin{Author}\relax
Henrik Bengtsson (\url{http://www.braju.com/R/})
\end{Author}
\begin{SeeAlso}\relax
\code{\LinkA{applyCdfGroups}{applyCdfGroups}}().
\end{SeeAlso}

