code

MATLAB菜鸟入门必备资料，帮助学习MATLAB编程及其技巧！(Getting Started with MATLAB rookie essential information to help to learn MATLAB programming and skill!)

matlab code by FEM for simulation the waveguide

灰色GM(1,1)模型matlab计算代码(matlab gm (1, 1) process researchers hope to help the gray system)

采用Davenport功率谱密度函数，线性滤波法模拟风荷载(Davenport using power spectral density function, linear filtering method to simulate wind loads)

多层降维法MDR的衍生分析方法GMDR，软件包括使用方法(Multiple dimension reduction method is to detect and qualitative attributes, or attribute combination interactions, in turn, affects and decided to class variables method of data mining)

这是一个粒子群优化算法的博士毕业论文，适合做毕设，希望对大家有用(This is a PSO Ph.D. thesis, suitable for complete set, we want to be useful)

matlab传递矩阵计算转子临界转速。非常实用(matlab transfer matrix calculation of the rotor critical speed. Very useful)

基于EMD的直流电机换向电流提取程序。内含用LEM公司的霍尔传感器实测的微型直流电动机启动时的电流信号（真实的数据和大家分享），分别用小波滤波和EMD消噪，并用EMD提取直流分量、高频换向电流，对研究电机间接测速、启动特性测试很有帮助，对电机故障诊断也有帮助。(EMD-based DC motor commutation current extraction procedures. LEM s included with Hall sensors measured miniature DC motor start-up current signals (real data and to share), respectively, with wavelet filtering and EMD de-noising and extracted DC component with EMD, a high-frequency current commutation of indirect research motor speed, starting characteristics testing is helpful, for motor fault diagnosis can also help.)

matlab编写的文本分类的程序，可以对已经分好词的文本进行分类，先自己导入数据，用libsvm中的svm进行分类和预测，特征用tfidf算法，还利用卡方检验进行了特征选择，可自行设定阈值。(matlab prepared text classification program, you can have a good word of text classification, classification and prediction using libsvm in svm, characterized by tfidf algorithm, also used the chi-square test was used for feature selection, you can set thresholds on their own.)

说明：  轴承外圈故障仿真的信号，简单实用，欢迎朋友提供内圈，滚动体，保持架仿真信号！(Signal of Bearing Outer Ring Fault Simulation)