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. 2020 Apr 15;11:333. doi: 10.3389/fphys.2020.00333

Table 2.

A summary of optimal values of all the parameters for three fractal methods: DFA, BC, and HG for each length of the time series.

Method Parameter Option for each series length (N)
16 32 64 128 256 512 1024
DFA Minimum box size (nmin) 4 4 4 4 4 4 4
Maximum box size (nmax) N/2 N/2 N/2 N/2 N/5 N/9 N/10
Increment method AP AP GP GP AP AP AP
Increment factor (d) 2 4 n/a n/a 6 6 4
Polynomial order (k) 1 2 2 2 2 2 1
BC Minimum box size (nmin) 4 6 4 8 4 4 4
Maximum box size (nmax) N/2 N/2 N/2 N/2 N/2 N/2 N/4
Increment method AP AP AP AP GP GP AP
Increment factor (d) 2 2 6 6 n/a n/a 2
HG Maximum interval length (nmax) 4 4 4 8 4 4 4