YES-corner

数据挖掘能处理大量的非线性数据，需要引入决策树才正确地理解应用(Data mining can deal with a large number of nonlinear data, need to introduce the decision tree to correctly understand the application )

matlab sound processing(Matlab sound processing)

使用matlab编写的模拟退火算法，经过matlab验证过，程序可以直接拷贝使用(Prepared using matlab simulated annealing algorithm matlab verified through the program can be directly copied using)

matlab编写程序过程当中，经常遇到忘记或者不知道代码指令，这个目录可以方便查询代码指令(matlab programming process, frequently encountered forget or do not know the code instructions, this directory can be easily query code instructions)

说明：  　本文对变步长自适应滤波算法进行了讨论,建立了步长因子μ与误差信号e(n) 之间另一种新的非线性函数关系. 该函数比已有的sigmoid 函数简单,且在误差e(n)接近零处具有缓慢变化的特性,克服了Sigmoid 函数在 自适应稳态阶段步长调整过程中的不足. 由此函数本文得出了另一种新的变步长自适应滤波算法,并且分析了参数α,β的取值原则及对算法收敛性能的影响. 该算法有较好的收敛性能且计算量少. 计算机仿真结果与理论分析相一致,证实了该算法的收敛性能优于已有的算法.(In this paper, variable step adaptive filter algorithm to discuss the establishment of a step factor μ and the error signal e (n) between another new nonlinear function. The function has a sigmoid function than the simple and the error e (n) close to zero Department has a slow change in the characteristics of a Sigmoid function to overcome the steady-state phase in the adaptive step length adjustment during the process. this function, this paper gives another new variable step size adaptive filtering algorithms, and analysis of the parameters α, β the value principles and the convergence performance. The algorithm has better convergence performance easy to calculate. Simulation results and theoretical analysis, confirmed the convergence of the algorithm better performance than existing algorithms.)

利用平面波展开法来计算完整光子晶体能带图的两个程序，比较好用(Using the plane wave expansion method to calculate the complete photonic bandgap diagram of the two programs, seem to work better)

对二维图像进行hough变换，并显示hough变换的结果(pair of two-dimensional images hough transform, and display the results hough transform)

marginal_hht, marginal_power_hht,phase difference

finding peak or reversing point from up trend to down trend and you can switch to find trough by findpeak(-x)

自相关信号检测仿真程序。在数据处理过程中，首先要检测信号的存在和大致位置。(Self-related signal detection simulation program. In the data processing, the first to detect the presence and approximate location of the signal.)