Dear Georg, There's been a few questions about the QC stuff in simpleaffy - mainly to do with finding QC data on different arrays. The way the package works is that there are some tables containing the names of the QC probes, alpha1 and alpha2 parameters, etc. that are array specific. The error your getting is because I've not put zebrafish arrays into the tables yet. I'll do this and let you know. Cheers, Crispin -----Original Message----- From: bioconductor-bounces@stat.math.ethz.ch [mailto:bioconductor-bounces@stat.math.ethz.ch] On Behalf Of Georg Otto Sent: 11 October 2004 16:42 To: bioconductor@stat.math.ethz.ch Subject: [BioC] problems using cdfenv Dear bioconductors, i have a problem that presumably concerns my cdfenv installation. I use the zebrafish affymetrix gene chip, and I tried simpleaffy to get some quality control measures. Getting the expression measures with mas5 seems to work fine, but > qc<-qc(x, x.mas5) Gives me an error message: Error in qc.affy(unnormalised, ...) : I'm sorry I do not know about chip type: zebrafishcdf I installed the zebrafishcdf from the bioconductor website but i still get the same error. Then I made the cdf environment myself using the CDF file from Affymetrix and makecdfenv. Unfortunately there is still the same error. Is there something that I missed? Best regards, Georg -------------------------------------------------------- This email is confidential and intended solely for the use o...{{dropped}}