TABLE 2.

Metrics on cells - κ denotes the elongation of the cell, whereas α the angle of orientation of the cell; m represents the mean value and σ the standard deviation; W indicates statistics over the whole network, whereas C over the cells adjacent to the central vertical column.

	m(κ)	σ(κ)	m(α)	σ(α)
Initial exp. data, Fig. 8(b), W	2.48	1.93	−23.68	48.66
Initial exp. data, Fig. 8(b), C	2.29	1.18	−33.63	27.78
Final exp. data, Fig. 15(b), W	3.40	1.71	−11.01	25.48
Simulation data, Fig. 16, W	4.09	4.36	−4.55	32.05
Final exp. data, Fig. 15(b), C	4.04	1.31	−6.15	9.01
Simulation data, Fig. 16, C	4.44	2.37	−8.63	16.45