Table 2 Rank correlations between weekly functioning and weekly activity / weekly fractal dimension. For each patient, the three weeks in the measurement period were ranked in the following way: (1) from worst functioning to best functioning (2) from low complexity (high fractal dimension) to high complexity (low fractal dimension), and (3) from low activity counts to high activity counts. We report the Spearman correlation between rankings (1) and (2) in the first column, and between rankings (1) and (3) in the second column, for each patient separately

From: Time-dependent complexity characterisation of activity patterns in patients with Chronic Fatigue Syndrome