gangzhugundong

K-means算法是基于划分的思想，因此算法易于理解且实现方法简单易行，但需要人工选择初始的聚类数目即算法是带参数的。类的数目确定往往非常复杂和具有不确定性，因此需要专业的知识和行业经验才能较好的确定。而且因为初始聚类中心的选择是随机的，因此会造成部分初始聚类中心相似或者处于数据边缘，造成算法的迭代次数明显增加，甚至会因为个别数据而造成聚类失败的现象。(K-means algorithm is based on the idea of partitioning, so the algorithm is easy to understand and the implementation method is simple and feasible, but it requires manual selection of the initial number of clusters, that is, the algorithm is with parameters. The number of classes is often very complex and uncertain, so professional knowledge and industry experience are needed to better determine. Moreover, because the selection of initial clustering centers is random, some initial clustering centers will be similar or at the edge of data, resulting in a significant increase in the number of iterations of the algorithm, and even the phenomenon of clustering failure due to individual data.)

说明：  DSP28335芯片CAN总线模块案例程序(case codes about CAN bus of DSP28335)

地震勘探新技术AVO理论中，纵波反射和转换波反射系数随入射角的变化规律，涵盖了包括完全佐普里兹方程在内的四种近似计算方法。(Calculates P-to-P reflectivity (Rpp)and P-to-S reflectivity (Rps) as a function of the angle of incidence (ang).)

遍历堆，可以对一个堆编立，复制，采用函数的递归调用来实现的(Traverse the heap, the recursive call to compile a heap legislation, copy, use the function)

漂亮大气注册登录页面模板，适合各种浏览器，注册页面包涵QQ、微博、微信等第三方登录按钮。(Beautiful atmospheric registration page template, suitable for a variety of browsers, registration page contains QQ, micro blog, micro-mail and other third-party login buttons.)

n后问题，也适合八皇后问题，环境Vc6.0-n After the issue, is also suitable for the eight queens problem

MOTO-V3Icopy手机电路图，学习先进思想的电路设计-MOTO- V3Icopy phone circuit, and to learn from the advanced thinking of the circuit design

说明：  包括跳频通信系统的整个工作流程，调制，跳频，解跳，解调。 其中，调制采用MSK调制方式，解调采用复差分解调方式。(Including the whole work flow of frequency hopping communication system, modulation, frequency hopping, de hopping, demodulation. Among them, MSK modulation is used for modulation and complex differential demodulation is used for demodulation.)

说明：  ZigZag Expert Advisor for MT4

该文件讲述了多种pid控制的原理，比如变积分控制等(This document describes the principles of many kinds of PID control, such as variable integral control, etc.)