[BioC] Cluster stability/robustness

[Rafi [guest]]

Hello,

I have used hclust to cluster a large data of 10K genes and 800 conditions and got 150 clusters as output.  

How can I show that these clusters are stable? 

What are the common metrics or parameters that are used to show that we have got a stable/robust cluster?

Is there any package that will do this? 

Your reply will be very helpful. Thank you for your time in advance.

Thanks
Rafi

 -- output of sessionInfo(): 

R version 3.0.2 (2013-09-25)
Platform: x86_64-w64-mingw32/x64 (64-bit)

locale:
[1] LC_COLLATE=English_United States.1252  LC_CTYPE=English_United States.1252    LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C                           LC_TIME=English_United States.1252    

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

loaded via a namespace (and not attached):
[1] tools_3.0.2

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