Hi I am just beginning my research in the analysis of Oligonucleotide GeneChip data. I have difficulty getting information from the data bases. I have been given some .CEL files and I need to extract perfect match (PM)/mismatch (MM) pair signal intensities. Where can I get information how to do this? Where can I get good information about extracting info from .CEL files? Best regards. Stephen.

You can get information from the help pages that come with R. Type help.start() to get a browser, and go to the affy help section. Additionally, you can get information from the vignettes that come with affy. You will find links to the vignettes at the top of the affy help page, or you can type openVignette() after library(affy) from within R. Jim James W. MacDonald UMCCC Microarray Core Facility 1500 E. Medical Center Drive 7410 CCGC Ann Arbor MI 48109 734-647-5623 >>> Stephen Nyangoma <s.nyangoma@cs.rug.nl> 06/28/03 06:49AM >>> Hi I am just beginning my research in the analysis of Oligonucleotide GeneChip data. I have difficulty getting information from the data bases. I have been given some .CEL files and I need to extract perfect match (PM)/mismatch (MM) pair signal intensities. Where can I get information how to do this? Where can I get good information about extracting info from .CEL files? Best regards. Stephen. _______________________________________________ Bioconductor mailing list Bioconductor@stat.math.ethz.ch https://www.stat.math.ethz.ch/mailman/listinfo/bioconductor