Table 1.

Summary of cluster statistics for three “single” units in Figure 3: false-positive events

	Single cluster error	Multiple cluster error				Composite
	Single cluster error	Overlap of clusters				Composite
	ISI violations, f₁^p	1 – 2	2 - 3	3 - 1	Sum, f₂^p	Computed as Maximum (f₁^p, f₂^p)
Unit 1	0	0		0	0	0
Unit 2	0.01	0.001	0.005		0.006	0.01
Unit 3	0.12		0.026	0	0.026	0.12