We add these features because our recent work has found an acoustic component to AD (Fraser, Meltzer, and Rudzicz 2016).
for 3 rd -order recurrence quantification analysis with delay 2, neighborhood 0.5, we compute the mean recurrence rate, determinism, {mean, maximal, and entropy of} diagonal line length, laminarity, trapping time, maximal vertical line length, recurrence time of 1 st and 2 nd types, clustering coefficient, and transitivity over windows of length 1,000 samples (with a 500-sample window shift).