Hi, There are no immediate plans to implement this. While I already have existing code for parsing bpmap files, much of the internal structure of RMAExpress is set up for expression arrays and other parts of the RMA algorithm are not necessarily applicable to this array type. In addition from what I know Affymetrix's own Tiling Analysis Software alread implements my quantile normalization algorithm as the default option. Best, Ben On Fri, 2006-09-01 at 10:57 +0200, Olivier Schaad wrote: > dear Ben > Do have plan to implement the possibility of using RMA express > in order to normalize tilling arrays, the CEL file do have the same > format, but the CDF file does not exist any more it is now the bpmap > file ( PRNFGMm1b520182FR(-).bpmap) > i.e : > -- Ben Bolstad <bmb@xxxxxxxxxxxxx> http://bmbolstad.com