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. 2014 Feb 27;9(2):e89244. doi: 10.1371/journal.pone.0089244

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© 2014 Guo et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

PMC Copyright notice

CICs greater than 1.0E-6 are present in a power law-like distribution; specifically, the logarithm of the number of the CICs versus the logarithm of their orders of magnitude yields a piecewise linear relationship. Based on the question of whether a power law distribution is appropriate for analyzing complex networks and worries about the unreliability of undervalued CICs that might be caused by spare data, only the CICs greater than 1.0E-6 were directly used in the inference in this study. CICs inferred as less than 1.0E-6 were replaced by the threshold for smoothing.