Figure 2
From: Transfer Entropy Estimation and Directional Coupling Change Detection in Biomedical Time Series
Simulated experiment: parameter selection for the fixed-bin (panel A) and KDE (panel B) methods, and a comparison among the three transfer entropy estimation methods (panel C). Each panel shows a plot of median transfer entropy vs. time lag (τ), with SNR = 20 dB, N = 200, and 100 trials. Significant information transfer occurs only at τ = 2. The error bars represent interquartile range. Panels A and B show that sub-optimal parameters led to inflated transfer entropies at time lags of no coupling. Panel C compares the three methods after selecting Q = 4 and α = 1.5.