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Table 1 Power of Scoring Index

From: Clustering by genetic ancestry using genome-wide SNP data

  Scenario 1: Equal N Scenario 2: Unequal N
K Max SI Optimal SI Max SI Optimal SI
2 0.78 1 0.56 0.99
3 0.97 1 0.64 0.97
4 0.99 1 0.86 0.99
5 1 1 0.99 1
6 0.99 1 0.99 0.99
7 1 1 0.99 0.99
8 1 1 0.99 0.99
9 1 1 0.99 0.99
10 1 1 1 1
  1. We report the proportion of datasets for which the correct number of clusters is identified and the subjects are correctly allocated their respective cluster. The maximum SI corresponds to the cluster size at which the SI is maximized and the optimal SI corresponds to the smallest cluster size for which the SI falls within the 95% CI of the maximum SI.