[R] PAM and CLARA

[Allan Tucker]

Hi,

 I am using the PAM and CLARA packages in R and have found that the =
 resulting clusters do not vary between runs. As I understand, these =
 algorithms should both have random starting points and, therefore, their =
 solutions should vary from run to run (unless the clustering is =
 trivial). This is the case with K-means on the dataset that I am using. =
 Could anyone explain why this might be occurring.

 Thanks,

 Allan.

-------------------------------------------------------------------------
Dr Allan Tucker
Research Fellow
Department of Information Systems and Computing
Brunel University
Uxbridge
Middlesex,
UB8 3PH, 
United Kingdom

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