\HeaderA{expressionSet133a}{A small dataset for testing}{expressionSet133a}
\keyword{datasets}{expressionSet133a}
\begin{Description}\relax
An artificial Affymetrix hgu133a dataset, with one 
covariate 'cov1'.
\end{Description}
\begin{Usage}
\begin{verbatim}data(expressionSet133a)
\end{verbatim}
\end{Usage}
\begin{Format}\relax
The data are artifical. There are 6 cases labeled 1 to
6 and and 22283 genes as in an Affymetrix U133a chips. 
There is one covariate (factor) whose values are "type 1"
for the first 3 samples and "type 2" for the last 3 samples.
\end{Format}
\begin{Examples}
\begin{ExampleCode}
data(expressionSet133a)
\end{ExampleCode}
\end{Examples}