I am using Ward algorithm implemented in JKlustor (3.1.3) to cluster a set of 8964 molecules. Before that, I run Kelly optimization program to have an idea on a number of possible clusters. How do you explain the following result :
Kelley Indexes for All Cluster Levels
Optimal number of clusters: -1 ??
Thank you for your support.
This definitely a bug.
Could you send some example so I can reproduce it.
Attached the corresponding file. Thank you for your help.
I have found the bug and fixed it.
Thank you for the attachment.
Thank you for fixing this bug. Where can I find the new version of the algorithm ?