upload

说明：  感兴趣区域提取。根据人感兴趣的区域对图像进行裁减(Region of interest extraction. According to people interested in the process of reducing the region' s image)

特征提取算法（pca),用于数据的特征提取。(feature extraction)

this is simple sample of Group Method of Data Handling(GMDH) neural network main file: GMDH.m

牛顿法计算IEEE14节点的潮流程序，该程序也可以计算任意系统的潮流(Newton method IEEE14 trend node procedure, the program can calculate the trend of any system)

结合25个实例，详细介绍了matlab的编程技巧(The combination of 25 instances, details Matlab programming skills)

本人编写的BPAmatlab程序，用于神经网络学习。(I prepared BPAmatlab procedures for neural network learning.)

说明：  双馈风机的模型，在matlab2016搭建，包含内外环控制(model of DFIG in matlab2016 including outer and inner controll loop)

利用FFT变换，对sine2进行频谱分析，画出频谱图 利用fir源程序对输入波形sine2进行低通滤波，并将结果输出至result.dat (Using FFT transform, spectral analysis of sine2, draw the spectrum graph fir the use of the input waveform sine2 source for low-pass filtering, and the results output to result.dat)

说明：  蒙特卡罗方法可以有效地解决复杂的工程问题，而MATLAB具有强大的数值计算功能。将二者结合使用，可以得到高效的解决问题的方法。本文阐述了该方法并通过实例验证了该方法的正确性和优越性。 (Monte Carlo method can effectively solve complex engineering problems, and MATLAB has powerful function of numerical calculation. The two in combination, can be cost-effective solution to the problem. This paper describes the methods and examples of the method to verify the correctness and superiority.)

用于时间序列的预测，包含序列特征描述、平稳性检验、序列周期判断、季节因子提取、指数平滑预测、及ARIMA预测(Sequence features for time series prediction, including the description of the stationary test, to determine the sequence cycle, seasonal factor extraction, exponential smoothing, and ARIMA forecasting)