近似熵是系统复杂性测度很有效的一种方法，在医学、机械设备故障的诊断等方面得到广泛应用。近似熵复杂性测度具有计算简便，对时间序列长度等条件要求相对较低等优点，因而更具有实用价值，是水文非线性系统领域中的新型工具。-Approximate entropy is a measure of system complexity, a very effective way, in medicine, the diagnosis of mechanical equipment failures, etc. a

计算一个N点序列的近似熵，运用的原始的算法，最后得出的事m=2时的一个结果，还需再次调用，以获得m=3时，两者相减方为近似熵-this is use the means of tradition calculation of APEN to calculate the APEN ,the first run only get the result of when the m=2,you should run again to set up the m=3 to got the outcome

近似熵的计算，matlab编程，近似熵的定义以及内部解释-approximate entropy

计算语音信号的近似熵，需要输入语音信号调用本文件方可运行-Calculate the approximate entropy speech signal, you need to call the input speech signal before running this document

PSO：粒子群优化算法，用C++和matlab两种语言实现的 RVM:相关向量机，比SVM更高级些 样本熵和近似熵：计算动态系统中时间序列的一个重要手段-PSO: PSO algorithm, using C++ and matlab realization of two languages RVM: relevance vector machine, some more advanced than SVM Sample entropy and approximate ent