Multiscale Cross-Approximate Entropy Analysis as a Measure of Complexity among the Aged and Diabetic
Figure 2
Multiscale entropy (MSE) analysis of (a) RRI and (b) PTT time series showing changes in sample entropy, , among the four groups of study subjects for different scale factors. Symbols represent the mean values of entropy for each group, and bars represent the standard error (given by , where is the number of subjects).
