Figure 2From: Analysis of short-term heart rate and diastolic period variability using a refined fuzzy entropy methodSampEn, FuzzyEn, and rFuzzyEn results of simulated \( 1/f^{\alpha } \) models with different data length. Gray bar indicates the lengths that cannot support good performance of SampEn and FuzzyEn, but can still for rFuzzyEn. The abscissa is in logarithmic scale for better visualization.Back to article page