cdfGtypeCelToPQ {affxparser} | R Documentation |
Function to immitate Affymetrix' gtype_cel_to_pq software.
This function
is design to be used with applyCdfGroups
()
on an Affymetrix Mapping (SNP) CDF list
structure.
cdfGtypeCelToPQ(groups, ...)
groups |
A list structure with groups. |
... |
Not used. |
Returns a list
structure with a single group. The fields in this
groups are in turn vectors (all of equal length) where the elements
are stored as subsequent quartets (PMA, MMA, PMB, MMB) with all
forward-strand quartets first followed by all reverse-strand quartets.
Henrik Bengtsson (http://www.braju.com/R/)
[1] Affymetrix, Understanding Genotyping Probe Set Structure, 2005.
http://www.affymetrix.com/support/developer/whitepapers/genotyping_probe_set_structure.affx