\Header{hgu95Achrom}{Annotation data for the Affymetrix HGU95A GeneChip}
\alias{hgu95AchromNames}{hgu95Achrom}
\keyword{datasets}{hgu95Achrom}
\begin{Description}\relax
Data, in the form of environments for the Affymetrix U95A
chip.\end{Description}
\begin{Usage}
\begin{verbatim}data(hgu95Achrom)
 data(hgu95AchromNames)
\end{verbatim}
\end{Usage}
\begin{Format}\relax
This data set provides an environment (treat as a hashtable)
with mappings from the Affymetrix
identifiers to chromosome number/name.
The environment functions like a hashtable and can be accessed using
\code{multiget}.
If the returned value is \code{NA} then the current 
mapping was unable to identify this. Mappings and data sources are
constantly evolving so updating often is recommended.

\code{hgu95AchromNames} is a character vector with the chromosome
names in the order, 1 through 22 then X then Y. This is useful
for ordering the chromosomes in some plotting functions.\end{Format}
\begin{Source}\relax
The \code{AnnBuilder} package.\end{Source}
\begin{Examples}
\begin{ExampleCode}
 data(hgu95Achrom)
 data(eset)
 multiget(geneNames(eset)[330:340], env=hgu95Achrom)
 data(hgu95AchromNames)
\end{ExampleCode}
\end{Examples}

