http://www.bioconductor.org/workshops/Summer02Course/index.html has a couple bad links on it: http://www.bioconductor.org/workshops/Summer02Course/MultTest/multtest .pdf http://www.bioconductor.org/workshops/Summer02Course/Labs/basicsAll.R cheers, Bill p.s. Thanks for making this all available. I'm using it for a course project in a bioinformatics program at UCSC Extension, and it's tremendously helpful.