The selection of inconsistency coefficient. The Inconsistency Coefficient varies by the number of clusters (as a depth value in Dendrogram) for number of linkage distributions. This distribution becomes in more compact form around the maximum value of Inconsistency Coefficient of seven. This value suggests the cut-off point for the Dendrogram or the number of cluster selection.
Uragun and Rajan BMC Neuroscience 2013 14:114 doi:10.1186/1471-2202-14-114