Figure 1.

Dendrogram of derivation C3LM in the eyes closed condition for illustrative purposes. This analysis included data from 22 participants whose waking EEG was recorded in weekly intervals for three weeks. In this plot, each participant is denoted with an alphabetical letter on the x-axis and Euclidean distance is shown on the y-axis. Clusters highlighted in blue depict participants clustering across all three weeks, while red depicts participants whose three recordings do not cluster together. In this example, data from 19 participants clustered correctly, while data from 3 (subjects F, I, and C) did not cluster correctly.

Benz et al. BMC Neuroscience 2013 14:117   doi:10.1186/1471-2202-14-117
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