Fast Approximate Entropy
This function calculates Approximate Entropy (ApEn) of a time series data in a very efficient way.
Approximate Entropy (ApEn) is a popular tool in analysing the complexity of time series data especially in clinical research.
This function is a very simple and efficient implementation of ApEn, based on vectorization concept that improves speed tremendously over for-loop implementation.
It also contains a test code (foo.m) for generating a plot of ApEn of different simulated time series data, to help understand the usage. The test code generates a plot similar to that appearing in Ki H. Chon's 2009 paper in IEEE Eng in Med Biol, that discusses what r value we should use.
引用格式
Kijoon Lee (2026). Fast Approximate Entropy (https://ww2.mathworks.cn/matlabcentral/fileexchange/32427-fast-approximate-entropy), MATLAB Central File Exchange. 检索时间: .
