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. Author manuscript; available in PMC: 2015 Sep 5.

Published in final edited form as: Phys Rev E Stat Nonlin Soft Matter Phys. 2014 Sep 5;90(3):032702. doi: 10.1103/PhysRevE.90.032702

FIG. 2 — (Color online) (a) The correlation functions , , and versus the time lag Δt. Parameters used in this simulation: h = 5, c = K_d, σ_x/c = 0.2, τ_y = 1, and τ_x = 10. (b) The correlation coefficient ρ versus the Hill coefficient h for different levels of input noise σ_x/c. (c) < , regardless of h. (d) < , regardless of σ_x/_c.

Inline graphic — (Color online) (a) The correlation functions , , and versus the time lag Δt. Parameters used in this simulation: h = 5, c = K_d, σ_x/c = 0.2, τ_y = 1, and τ_x = 10. (b) The correlation coefficient ρ versus the Hill coefficient h for different levels of input noise σ_x/c. (c) < , regardless of h. (d) < , regardless of σ_x/_c.