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. 2013 Oct 1;7:122. doi: 10.3389/fncom.2013.00122

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Copyright © 2013 Gao and Hu.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The variation with time of (A) λ_small−ε, (B) λ_large−ε, (C) Lyapunov exponent, (D) correlation entropy, (E) correlation dimension, and (F) the Hurst parameter obtained using DFA. Adapted from Gao et al. (2011a).