Table 2.

Summary of the pros and cons of the two methods for providing early warning indicators.

	ACF	DFA
data requirements	average	high
computational requirements	low	high
detrending	optional	built-in
parameter sensitivity	sliding window length, filtering bandwidth	sliding window length
slowing down estimate	underestimated (when applying detrending)	sensitive close to critical point
trend prior to bifurcation	smooth	oscillating