Table 3. Frequency of clusters of different sizes for clustering parameters (d_NN, d_ext) = (7.5 µm, 15 µm), the parameters that gave the largest F-ratio for the crawl trials.

Columns as in Table 2.

Synapse count	Frequency	Number of presynaptic partners
2	28	1 (23x), 2 (5x)
3	11	1 (7x), 2 (4x)
4	9	1 (4x), 2 (5x)
5	2	1 (2x)
6	2	2 (2x)
7	3	1 (1x), 2 (1x), 3 (1x)
12	1	3 (1x)