It is one of the methods available in SPSS.
/method = ward
on the CLUSTER procedure.
[log in to unmask]
>Is code available to implement Ward's method in S-Plus?
>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
>e-mail: [log in to unmask]
>web page: http://ilya.wustl.edu/~shannon