Figure 2.

Sample dendrogram. Dendrogram of 4 nights for REM sleep in the children's cohort. This analysis included data from the 13 participants whose consecutive nights clustered at both sessions. In this plot, participant number is on the x-axis, and cosine distance on the y-axis. Clusters highlighted in blue depict those participants whose 4 nights cluster together, while green depicts participants whose 4 nights do not cluster together. Note that even in those whom all 4 nights do not cluster together, consecutive nights are clustered.