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一个最简单的主成分分析的源代码，希望对朋友们有所价值(A simple principal component analysis of the source code, I hope my friends have value)

说明：  灰色预测matlab程序与散点图的绘制的matlab程序(Grey prediction matlab program and scatter diagram of MATLAB program )

类似于心电图在显示屏上慢慢地绘制I love U，是理工男表白的绝佳工具。(Similar to the electrocardiogram slowly draw I love U in the display is the perfect tool Polytechnic male confession)

this tutorial will help beginners in the radar image processing. The programs are arranged in form of the chapters. all the best.

MATLAB频散曲线绘制，相速度，群速度(MATLAB dispersion curve drawing, phase velocity, group velocity)

example for optimization by pso algorithm

implentation of histogram matching

Optimization toolbox

说明：  模式识别中边缘直方图特征提取。。。。每张图片可以得到 一个80维的向量(Pattern Recognition Feature Extraction of Edge Histogram. . . . Each picture can get a 80-dimensional vector)

斯坦福大学机器学习课程的一个源代码例子，对于机器学习和deep learning的学习研究很有帮助(this codes are from standford university,which are about machine learning and deep learning.they will be helpful in this research field)