In STATLIB (, F.Mutagh's implementation (Fortran 77) for hierarchical clustering
This programme is very efficient: O(n^2) time, O(n^2) space and includes Ward's method.
It's very easy to translate this programme in C++ code.


A 08:37 12/11/2002 -0800, Jason Harrison a écrit :
>On Tuesday, November 12, 2002, at 07:36  AM, shannon wrote:
>>Is code avaialble to implement Ward's method in S-Plus?
>While we're on the topic, is there an implementation of Ward's method
>and PEST in C/C++?
>Jason Harrison, PhD
>Post-Doctoral Fellow and Imager Lab Manager
>Imager Computer Graphics Laboratory
>FSC3640 - 2424 Main Mall, Vancouver BC V6T 1Z4
>Office: FSC2625, 604-822-4231, Lab: 604 822 2218, Fax: 604 822 8989