Fig. 1From: Time-dependent complexity characterisation of activity patterns in patients with Chronic Fatigue SyndromeTime-dependent complexity. Illustration of the main idea for capturing the evolution of the complexity over time. A sliding window, as depicted here with a width of 3 days (72 hours), advances along the time series, in this case an activity counts sequence. Within the window, the AAA method is applied to obtain the fractal dimension. These dimensions form a new signal, quantifying the evolution of the complexity of the activity signal over timeBack to article page