md5

2d logistic regression demo

Rayleigh衰落信道仿真 多径与单径，多普勒平移(Rayleigh fading channel model and simulation:Rayleigh_Doppler_singlePath, Rayleigh_Doppler_multiPath)

用于无红利的美式看跌期权定价，参数依次为（现在股价，协议价格，无风险利率，波动率，期限，二叉树步数） 　(No dividend for the American put option pricing parameters were (now price, agreed price, risk-free interest rate, volatility, duration, binary steps))

matlab code for averaging data time series

说明：  这是个OFDM系统的算法，内部包含同步，信道估计等，而且用蒙特卡洛方法进行仿真分析。(This is an algorithm for OFDM systems, internal includes synchronization, channel estimation, and simulation analysis using the Monte Carlo method.)

说明：  程序以MATLAB为工具对图像进行边缘检测(bianyuanjiance)

说明：  BP神经网络（主要用于函数拟合与模式分类）Matlab的示例程序(BP neural network (the main function for the fitting and pattern classification) Matlab sample program)

雷达信号处理领域入门与提高的好资料，适合于考前复习与项目使用，对很多概念有深入讲解，易于理解(A good data entry field of radar signal processing and improve the exam review, suitable for use with the project, there are many in-depth explanation of concept, easy to understand)

PSAT software for analysis power system

聚类算法，不是分类算法。分类算法是给一个数据，然后判断这个数据属于已分好的类中的具体哪一类。聚类算法是给一大堆原始数据，然后通过算法将其中具有相似特征的数据聚为一类。这里的k-means聚类，是事先给出原始数据所含的类数，然后将含有相似特征的数据聚为一个类中。所有资料中还是Andrew Ng介绍的明白。首先给出原始数据{x1,x2,...,xn}，这些数据没有被标记的。初始化k个随机数据u1,u2,...,uk。这些xn和uk都是向量。根据下面两个公式迭代就能求出最终所有的u,这些u就是最终所有类的中心位置。(Clustering algorithm, not a classification algorithm. Classification algorithm is to give a figure, and then determine the data belonging to a specific class of good which category. Clustering algorithm is to give a lot of raw data, and then through the algorithm which has similar characteristics data together as a class. Here k-means clustering, is given in advance the number of classes contained in the raw data, then the data contain similar characteristics together as a class. All information presented in or Andrew Ng understand. Firstly, raw data {x1, x2, ..., xn}, the data is not labeled. K random initialization data u1, u2, ..., uk. These are the vectors xn and uk. According to the following two formulas can be obtained final iteration all u, u is the ultimate all these classes the center position.)