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多元统计分析中用来分析数据的一种方法，它是用一种较少数量的特征对样本进行描述以达到降低特征空间维数的方法(A method used to analyze data in multivariate statistical analysis. It uses a small number of features to describe samples in order to reduce the dimension of feature space.)

说明：  深入理解C#(中文第三版)pdf文档 带目录清晰版(C# in depth)

裁剪地形图，裁剪地形图后自动完成，自动检查-Cutting topographic maps, topographic maps, after cutting

说明：  S参数反演，利用同轴博导法测出的S参数，用NWR方法反演出等效介电参数。(S parameter inversion)

This program describes the concept of polymorphism in C++. Example of Inheritance is given in this code

MATLAB编写程序验证分数延时滤波器功能(Programming in MATLAB to verify the function of fractional delay filter)

win32 编程有利的助手，共享给大家。希望对大家有所帮助-win32 programming favorable assistant to the U.S. share. Would like to help everyone

应用于粗糙表面线接触弹流润滑计算，自动生成随机分布的表面粗糙度程序。(It is applied to the calculation of linear contact elastohydrodynamic lubrication on rough surface to automatically generate randomly distributed surface roughness program.)

本书提供了快速绘制高质量图形的150多种技巧，每个技巧用来解决一个特定的绘图需求。读者可以通过目录快速定位到自己遇到的问题，查询相应的解决方案。(This book provides more than 150 techniques for quickly drawing high quality graphics, each of which addresses a specific drawing requirement. Readers can quickly locate their own problems through the directory, query the corresponding solution.)

提供了一个很好的工具给广大航海人帮助，了解国际航海规则-Provides a good navigational tools to the broad masses of people to help, understanding of international navigation rules