I am unable to use the qc.stats function because of the following error: > qc <- qc.stats(gclmko.raw,gclmko.mas5) Getting probe level data... Computing p-values Doing PMA Calls Error in qc.stats(gclmko.raw, gclmko.mas5) : Sorry - I'm afraid I don't know about the spike probes on ' mouse4302cdf ' arrays. > I guess this is from no annotation package available for moe430_2 arrays. I am using Windows 2000 with the following: base 1.9.0 utils 1.9.0 graphics 1.9.0 stats 1.9.0 methods 1.9.0 affy 1.4.23 Biobase 1.4.10 tools 1.9.0 gcrma 1.0.6 simpleaffy 1.09 tkWidgets 1.3.14 DynDoc 1.3.11 widgetTools 1.2.2 tcltk 1.9.0 reposTools 1.3.12 mouse4302cdf 1.4.1 mouse4302probe 1.0 matchprobes 1.0.2 xtable 1.2-1 Thanks, Dick ********************************************************************** ********* Richard P. Beyer, Ph.D. University of Washington Tel.:(206) 616 7378 Env. & Occ. Health Sci. , Box 354695 Fax: (206) 685 4696 4225 Roosevelt Way NE, # 100 Seattle, WA 98105-6099 http://depts.washington.edu/ceeh/ServiceCores/FC5/FC5.html