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. 2020 Sep 15;22(9):1029. doi: 10.3390/e22091029

Table A1.

Degree distributions of simulated networks were fitted to exponential, log-normal, and Poisson distributions and compared against the fitted power law distribution using Vuong’s test of mis-specified, non-nested hypotheses. Note that each set of model comparisons was conducted for each of the 100 simulated networks per condition or network type. The present table displays the mean and standard deviations of the test statistic and p-values.

Power Law Vs. Exponential
V-statistic 2-sided p 1-sided p
Network M SD M SD M SD
PATT 2.387 0.614 0.046 0.080 0.023 0.040
Inverse PATT −0.156 0.251 0.800 0.113 0.560 0.098
Random 0.420 0.359 0.682 0.222 0.347 0.120
PATT/Inverse PATT
200/800 1.614 0.399 0.135 0.111 0.067 0.056
400/600 2.320 0.483 0.037 0.048 0.018 0.024
600/400 2.597 0.578 0.025 0.041 0.012 0.021
200/800 2.626 0.511 0.021 0.039 0.011 0.020
Inverse PATT/PATT
200/800 1.116 0.357 0.293 0.151 0.147 0.076
400/600 0.593 0.288 0.570 0.176 0.285 0.088
600/400 0.221 0.241 0.817 0.161 0.416 0.088
200/800 0.009 0.253 0.849 0.120 0.498 0.097
Power law vs. Log-normal
V-statistic 2-sided p 1-sided p
Network M SD M SD M SD
PATT −0.735 0.350 0.488 0.171 0.756 0.085
Inverse PATT −0.695 0.227 0.498 0.137 0.751 0.069
Random −0.672 0.267 0.517 0.160 0.742 0.080
PATT/Inverse PATT
200/800 −0.777 0.201 0.446 0.091 0.777 0.045
400/600 −0.809 0.391 0.448 0.132 0.776 0.066
600/400 −0.798 0.340 0.450 0.154 0.775 0.077
200/800 −0.774 0.354 0.465 0.138 0.768 0.069
Inverse PATT/PATT
200/800 −0.519 0.272 0.618 0.172 0.691 0.086
400/600 −0.500 0.272 0.631 0.176 0.685 0.088
600/400 −0.514 0.260 0.620 0.167 0.690 0.084
200/800 −0.590 0.270 0.570 0.171 0.715 0.085
Power law vs. Possion
V-statistic 2-sided p 1-sided p
Network M SD M SD M SD
PATT 1.860 0.066 0.063 0.009 0.032 0.005
Inverse PATT 3.198 0.411 0.003 0.005 0.002 0.003
Random 2.453 0.151 0.015 0.006 0.008 0.003
PATT/Inverse PATT
200/800 3.390 0.161 0.001 0.001 0.000 0.000
400/600 2.926 0.138 0.004 0.002 0.002 0.001
600/400 2.554 0.118 0.011 0.003 0.006 0.002
200/800 2.184 0.075 0.029 0.005 0.015 0.003
Inverse PATT/PATT
200/800 1.899 0.072 0.058 0.009 0.029 0.005
400/600 1.967 0.084 0.050 0.009 0.025 0.005
600/400 2.103 0.118 0.037 0.010 0.018 0.005
200/800 2.460 0.240 0.017 0.012 0.008 0.006