Hi, since many of you asked off line - here is a web address where you can find out more about the monograph http://www.bioconductor.org/pub/docs/mogr/ best wishes, Robert -- Robert Gentleman, PhD Program in Computational Biology Division of Public Health Sciences Fred Hutchinson Cancer Research Center 1100 Fairview Ave. N, M2-B876 PO Box 19024 Seattle, Washington 98109-1024 206-667-7700 rgentlem at fhcrc.org