PCA

通过这个算法可以确定BP神经网络中隐层最优神经元个数(Determine the BP neural network hidden layer neuron number of optimal)

对于一组数据求数据频率。绘制频率分布曲线。matlab求频率函数(Statistics_Toolbox of matlab to draw frequency curve)

用matlab的9个编程例子附程序，可以更好的理解掌握MATLAB，供大家学习与交流。(9 programming example attached matlab program, you can better understand and grasp the MATLAB for everyone to learn and exchange.)

GPS navigation toolbox

这本 stevenkay 关于谱估计 信号估计 部分的英文书。 要想搞透信号估计，检测，，还是要看看这个的。 这个领域工作的人，若需要讨论，也可以找我。 毕竟能够和你讨论的人，非常少。希望我能帮上一点点。(This stevenkay on spectrum estimation signal estimation part of the English books. To estimate things through signals, detection, or to see that' s. People who work in this area, if necessary to discuss, you can find me. After all, who can discuss with you, very small. Hope I can be a little bit.)

基本粒子群算法的部分代码，有详细注释,适合初学者(PSO part of the code, there are detailed notes, suitable for beginners)

matlab中的画图程序，包括了坐标设置，最大范围设置，增加网格，网格间距，曲线颜色粗细，曲线类型。(Matlab drawing program, including the coordinate set, maximum range setting, increasing the grid, the grid spacing, color thick curve, curve type.)

免疫退火算法在参数优化中的应用，产生最优的优化结果(Immune annealing algorithm in parameter optimization, optimized to produce the best results)

newton-raphson numerical method

说明：  this file contains the medical image processing. Here, I have to find the preprocessing methods. In this implementation i have to add the salt and pepper noise.