An Empirical Study of Social Networks Metrics in Object-Oriented Software

Table 8

The best fitting parameters for the three different distributions for the metric Ties. For each version of Eclipse, empirical first and second moment, number of CU and maximum value are also reported.

Ties		lognormal		Power-law		Yule-Simon
Release	𝜇	𝜎LN	𝛼PL	𝑥0	𝛼YS	𝑐	#CU	⟨𝑥⟩	⟨𝑥^2⟩
2.1	2.85	1.54	2.38	174	2.23	20.6	7545	59.6	227.3	9799
3.0	2.80	1.54	2.39	141	2.21	19.1	10288	59.2	257.6	11901
3.1	2.85	1.56	2.37	143	2.16	18.6	11854	64.9	294.7	14711
3.2	2.82	1.57	2.35	141	2.14	17.7	14138	65.3	316.2	17029
3.3	2.83	1.57	2.33	145	2.13	17.4	15439	66.8	336.3	18819