chap1

这是《matlab程序设计教程》一书中的全部源码，对于学习matlab的读者很有帮助，该书也是一本很基础很全面的书适合初学者使用。(This is the matlab Programming Guide , a book all the source code for readers to learn matlab helpful, the book is very much the basis of a very comprehensive book for beginners to use.)

本程序基于matlab编写，利用最小二乘法来拟合圆形。(Matlab based on the preparation of this procedure, using the least square method to fit round.)

MATLAB 6.5 的教科书，对应上传的6.5代码学习。从基础讲解其功能，语法，运算函数，图像处理，等，经典的学习材料，并且用MATLAB 写的源代码(textbooks corresponds to the 6.5 code upload learning. From the foundation to explain its function, grammar, arithmetic function, image processing, etc., classical learning materials MATLAB and write source code)

系统自带的svm只能实现二分类，这个svm可以做多分类(Svm system comes only achieve two categories that you can do more svm classification)

采用离散傅立叶变换实现的低通滤波器，希望对你们有用，MATLAB实现(discrete Fourier transform of the low-pass filter, and I hope to you useful MATLAB)

自动控制方面的MATLAB程序，PID控制(Automatic control of MATLAB, PID control)

HHT wvd 小波 等时频分析方法有重要价值(HHT wvd wavelet)

用龙格库塔发解二阶微分方程，共三个小程序，初学者可以直接调用龙格库塔源程序(With solutions of second order differential equations Runge-Kutta hair, a total of three small programs, beginners can directly call the Runge-Kutta source)

comparative analysis of random forest with different feature selection algorithms.

说明：  提取opencart产品名称里的属性信息到目录属性里，实现opencart的目录筛选功能。具体属性需添加到文件内，具体看文件说明。(Extraction of Opencart product name in the attribute information to the directory attributes, implementation of Opencart directory screening function. The specific attributes need to add to a file, see the specific documentation. )