重分形去趋势涨落分析法，由我们课题组编写，MF-DFA-To do the MF_DFA analysis of vector x, m is the order of polynomal used to fit the trend

去趋势波动分析，用于信号分析，可以用于信号去噪，检测信号序列的相关性，内有源码及参考资料一篇-DFA analysis is used to analysis the signal.besides,it can also be used to test the conssitency of the input signal series.