permutar-matriz

说明：  可以用于训练数据得到HMM的三大参数A,B,Pi矩阵(Can be used to train data to get the three parameters A, B, Pi matrix of HMM)

power flow by newton-aphson method

PSO BASED CLASSIFICATION PATTERN

这个程序是关于图像的方针，直方图方法； 画出直方图。(This program is about the principle of the image, histogram method draw histogram.)

FFT算法 在matlab中的实现 进行向量的计算(FFT algorith is relise in matlab and frequre amp phase)

Knowledge of the process noise covariance matrix is essential for the application of Kalman filtering. However, it is usually a difficult task to obtain an explicit expression of for large time varying systems. This paper looks at an adaptive Kalman filter method for dynamic harmonic state estimation and harmonic injection tracking.(Knowledge of the process noise covariance matrix is essential for the application of Kalm an filtering. However, it is usually a difficult task to obtain an expli cit for large expression of time varying system s. This paper looks at an adaptive Kalman filter method for dynamic estimation a harmonic state nd harmonic injection tracking.)

动态分级法matlab程序，动态聚类，方法简便有效，而且能够给出所有分类结果。(Dynamic classification method matlab procedures, dynamic clustering, the method is simple and effective, and can give all the classification results.)

用于实现整流器的SPWM控制的matlab程序(a program used to achieve the SPWM control of rectifiers)

This is a procedure for computing small-world .For large complex networks, understandably, their sheer size is very important. This procedure is useful.

给出了经典的粒子群优化算法的matlab实现方法，并结合测试函数，显示算法的寻优能力(Gives a classical particle swarm optimization algorithm matlab implementation, combined with the test function, the ability to display optimization algorithm)