How one might miss early warning signals of critical transitions in time series data: A systematic study of two major currency pairs
Fig 4
Venn diagram illustration for maximum spreads, in terms of percentile and statistical significance.
In this illustration, A represents the set of maximum spreads {yms} over the entire time series using a given combination of parameters. B1 and B2 represent the elements in A with yms values above 90th percentile and 95th percentile. C represents the set of the maximum spreads corresponding to statistically significant EWSs.