\HeaderA{OpenLargefiles}{This function loads large data set made from tab delimited files}{OpenLargefiles}
\keyword{utilities}{OpenLargefiles}
\begin{Description}\relax
The function creates and expressionSet starting from al file containing the expresison data in a tab delimited format.
This file is loaded together with the description of the clinical paramenters present in Target 
This function uses a specific configuration of Target column of the affylmGUI target file.
To know more about target file see affylmGUI help.
Each row of the column named Target, in the affylmGUI target file, describes the clinical parameters.
Each clinical parameter is separated from the others by an underscore. 
the affylmGUI target file will look like:
Name   FileName        Target
mC1    M1.CEL  \verb+pos_yes_1_NA_0+
mC2    M4.CEL  \verb+pos_no_2_NA_0+
mC3    M7.CEL  \verb+neg_no_3_pos_0+
mE1    M3.CEL  \verb+neg_yes_3_neg_0+
mE2    M6.CEL  \verb+neg_no_NA_1_0+
mE3    M9.CEL  \verb+neg_yes_3_pos_0+
mI1    M2.CEL  \verb+pos_no_2_neg_1+
mI2    M5.CEL  \verb+pos_yes_2_pos_1+
mI3    M8.CEL  \verb+pos_no_2_pos_1+
\end{Description}
\begin{Usage}
\begin{verbatim}OpenLargefiles()\end{verbatim}
\end{Usage}
\begin{Author}\relax
Raffaele A Calogero
\end{Author}

