Figure 5.

(a) Probabilities of the six D = 3 ordinal patterns vs. the normalized pump current, I/Ith. The gray region indicates the range of probability values that is consistent with the uniform distribution, which is estimated with a binomial test: considering a confidence level of 95%, if all the OP probabilities are within the range, p ± 3σp, where p = 1/6 and
(with N being the length of the dataset), the OP are equally probable; in contrast, if at least one probability value is above p + 3σp or below p − 3σp, the OPs are not equally probable, with 95% confidence level. (b) Most probable OP [in the same color code as panel (a)] vs. the normalized pump current and the detection threshold. In the gray regions, either the six OPs are equally probable, or the number of detected events is not enough to compute the OP probabilities with robust statistics; the white color indicates that no events are detected.