Fig 3. Degree, degree ratio, and persistent behaviors of motifs for fGm series.

Segment length is selected to be s = 5. (a1)-(e1) show the occurrence degrees of the states in the original and shuffled fGm series with H = 0.6, 0.65, 0.7, 0.75 and 0.8, respectively; (a2)-(e2) present the degree ratios for all the states (visibility graphs) in the series with H = 0.6, 0.65, 0.7, 0.75, and 0.8, respectively; (a3)-(e3) Relations of R/S versus n obtained from occurring position series of the motifs, from which one can find persistent behaviors of the motifs’ occurring along the series.