gaph

Duffing系统的时域谱图和相空间轨迹绘制，能够帮助初学者很好的理解典型非线性特征(duffing equation Phase plane trajectory)

刺激呈现后，脑血流的功能磁共振信号到底是怎样的。如何将实验设计的时间序列模拟出相应的磁共振信号(After the stimulus presentation, functional magnetic resonance imaging of blood flow signal is what in the end. How will the time series of experimental design to simulate the magnetic resonance signals corresponding)

说明：  matlab的遗传算法实现，学习的好帮手(matlab genetic algorithm, learning a good helper)

fft分析：方法简单实用，希望能够帮助大家，大家可以参考一下(fft Analysis：very easy！)

IIR低通滤波器的matalab实现程序。(IIR low-pass filter matalab implementation process.)

一种改进的最近邻聚类算法，能够改进普通的最近邻聚类算法的不足(An improved nearest neighbor clustering algorithm, it is possible to improve the lack of common nearest neighbor clustering algorithm)

CHOOSENK All choices of K elements taken from 1:N

粗糙集属性约简代码，可以运行，可以运用到不同场合，可作为参考(Rough set attribute reduction code can run, can be applied to different occasions, can be used as reference)

主要实现最速下降法的算法及主程序计算，主要实现最速下降法的算法及主程序计算，(fast velocity methodfast velocity methodfast velocity methodfast velocity methodfast velocity method)

相关分析过程的matlab方法，BP神经网络用于函数拟合与模式识别，小波包分析提取振动信号中的特征频率。( Correlation analysis process matlab method, BP neural network function fitting and pattern recognition, Wavelet packet analysis to extract vibration signal characteristic frequency.)