Calculate Approximate Entropy (ApEn) of a time series
Usage
calculate_apen(x, m = 3, r = NULL)
Arguments
- x
Numeric vector of the time series
- m
Embedding dimension (sample size), default is 3
- r
Tolerance (threshold), default is 3.5 * sd(x)
Value
Approximate Entropy value
References
Pincus, S. M. (1991). Approximate entropy as a measure of system
complexity. Proceedings of the National Academy of Sciences, 88(6),
2297-2301.