Figure 8. K-means cluster analysis-based grouping of firing patterns elicited from hyperpolarized conditions:

K-means cluster analysis of (A) randomly sampled and (B)Y1eGFP neurons, in which two parameters – initial frequency and initial frequency adaptation – are used to assign each data point to one of the group based on how near they are to the respective mean. See associated Table 5 for prevalence of clustering. Each color represents a separate group and ‘X’ marks their mean center.