Hi everyone I have been invited to write a technology review for the journal Pharmacogenomics on cluster analysis methods for gene and protein expression data. Can anyone send me a reference on the history of cluster analysis? I would like to frame this paper within the context of the fact that these tools have been out there a long time and were not recently invented by the molecular biologists who are suddenly interested in using them. Thanks Bill --- William D. Shannon, Ph.D. Assistant Professor of Biostatistics in Medicine Division of General Medical Sciences and Biostatistics Washington University School of Medicine Campus Box 8005, 660 S. Euclid St. Louis, MO 63110 Phone: 314-454-8356 Fax: 314-454-5113 e-mail: [log in to unmask] web page: http://ilya.wustl.edu/~shannon