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Figure 4 | BioMedical Engineering OnLine

Figure 4

From: Sample entropy characteristics of movement for four foot types based on plantar centre of pressure during stance phase

Figure 4

Optimal selections of parameters m and r. In figures (a)-(g), median sample entropy is calculated over all time series of each variable. When m≥4, the curves converge. In figures (a’)-(g’), medians of maximum relative error that correspond to different m and r values are illustrated. Each r value was determined under the condition that the median of the maximum relative error is no more than 0.05.

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