\HeaderA{gahgu95bGENESTART}{Map custom probeset IDs to gene start position}{gahgu95bGENESTART}
\keyword{datasets}{gahgu95bGENESTART}
\begin{Description}\relax
gahgu95bGENESTART is an R environment that provides mappings between a
custom probeset identifier and the base pair starting position of gene onto corresponding chromosome.
\end{Description}
\begin{Details}\relax
Each identifier maps to a gene start position.
If the gene start position is unknown,
the vector will contain an \code{NA}.

Mappings were based on data provided by:

GeneCards database - www.genecards.org

Package built: Mon Aug 25 17:06:13 2008
\end{Details}
\begin{References}\relax
\url{www.genecards.org}
\end{References}
\begin{Examples}
\begin{ExampleCode}
        # Convert to a list
        xx <- as.list(gahgu95bGENESTART)
        # Remove probe identifiers that do not map to any gene start position
        xx <- xx[!is.na(xx)]
        if(length(xx) > 0){
            # Get the base pair number for gene start position for the first five probes
            xx[1:5]
            # Get the first one
            xx[[1]]
        }
\end{ExampleCode}
\end{Examples}

