readCdfGroupNames: Reads group names for a set of units (probesets) in an Affymetrix CDF file
Description
Reads group names for a set of units (probesets) in an Affymetrix CDF file. This is for instance useful for SNP arrays where the nucleotides used
for the A and B alleles are the same as the group names.
Usage
readCdfGroupNames(filename, units=NULL, truncateGroupNames=TRUE, verbose=0)
Arguments
filename
The filename of the CDF file.
units
An integer vector of unit indices specifying which
units to be read. If NULL, all units are read. truncateGroupNames
A logical variable indicating whether unit
names should be stripped from the beginning of group names. verbose
An integer specifying the verbose level. If 0, the
file is parsed quietly. The higher numbers, the more details. Value
A named list structure where the names of the elements are the names
of the units read. Each element is a character vector with group
names for the corrsponding unit.