path to the directory holding the data sgr data files
normalise
logical, should data be quantil normalised
fileExt
character specifying the filename extension
Value
Details
The function reads the data files in sgr file tab delimited format: chr, position, signal.
All data sets must be from the same array platform and have the same chromosome
names and positions. The data is read and then quantile normalised and stored as an
ExpressionSet.