\HeaderA{featureData}{Retrieve information on features recorded in eSet-derived
classes.}{featureData}
\aliasA{fData}{featureData}{fData}
\aliasA{fData<\Rdash}{featureData}{fData<.Rdash.}
\aliasA{featureData<\Rdash}{featureData}{featureData<.Rdash.}
\aliasA{fvarLabels}{featureData}{fvarLabels}
\aliasA{fvarLabels<\Rdash}{featureData}{fvarLabels<.Rdash.}
\aliasA{fvarMetadata}{featureData}{fvarMetadata}
\aliasA{fvarMetadata<\Rdash}{featureData}{fvarMetadata<.Rdash.}
\keyword{manip}{featureData}
\begin{Description}\relax
These generic functions access feature data (experiment specific
information about features) and feature meta-data (e.g., descriptions
of feature covariates).
\end{Description}
\begin{Usage}
\begin{verbatim}
featureData(object)
featureData(object) <- value
fData(object)
fData(object) <- value
fvarLabels(object)
fvarLabels(object) <- value
fvarMetadata(object)
fvarMetadata(object) <- value
\end{verbatim}
\end{Usage}
\begin{Arguments}
\begin{ldescription}
\item[\code{object}] Object, possibly derived from \code{\LinkA{eSet-class}{eSet.Rdash.class}}
or \code{\LinkA{AnnotatedDataFrame-class}{AnnotatedDataFrame.Rdash.class}}.
\item[\code{value}] Value to be assigned to corresponding object.
\end{ldescription}
\end{Arguments}
\begin{Value}
\code{featureData} returns an object containing information on both
variable values and variable meta-data.  \code{fvarLabels} returns a
character vector of measured variable names. \code{fData} returns a data
frame with features as rows, variables as columns. \code{fvarMetadata}
returns a data frame with variable names as rows, description tags
(e.g., unit of measurement) as columns.
\end{Value}
\begin{Author}\relax
Biocore
\end{Author}
\begin{SeeAlso}\relax
\code{\LinkA{eSet}{eSet.Rdash.class}},
\code{\LinkA{ExpressionSet}{ExpressionSet.Rdash.class}}
\end{SeeAlso}

