Fig. 1: Illustration of detrended fluctuation analysis (DFA).
From: Embodiment of concealable stigma disclosure through dynamics of movement and language
DFA determines the degree of random or persistent (deterministic) structure within a stochastic motion time-series from the slope, α (alpha), of a log-log plot of the average residual variance (root-mean-square; RMS) as a function of changing the window size used to calculated residual variance estimates. The bottom right time-series provide representative examples of white (random), pink (long-range correlated or slightly persistent), and brown (highly persistent) structures of variability. See text for more details.
