Toolbox Reference Manual - TOCSY - Toolbox for Complex Systems ...

pde
Purpose
Syntax
Description
Note
Examples
See Also
References
Computes the recurrence time entropy.
y=rpde(x)
y=rpde(x,...)
y=rpde(x) calculates the normalised entropy y of the recurrence time
distribution of time series x, also known as recurrence period density
entropy (RPDE).
In contrast to the calculation of RPDE here, in crqa a Theiler window
is applied to the RP by default, resulting in different RPDE values. For
comparison, you should ensure that the Theiler window in crqa is set to
0.
a=sin(0:.1:80);
b=sin(0:.1:80) + 0.1 * randn(1,801);
rpde(a,3,15,.1)
rpde(b,3,15,.1)
crqa, tt
Little, M., McSharry, P., Roberts, S., Costello, D., Moroz, I.: Exploiting
Nonlinear Recurrence and Fractal Scaling Properties for Voice Disorder
Detection, Biomed. Eng. Online, 6, 2007.
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