hpfilter

对于Ldpc码，测试其校验矩阵H有无4环的存在，避免因为存在4环影响性能(For Ldpc code, test whether the check matrix H of the existence of loop 4, loop 4 to avoid because of the impact of performance)

With the help of matlab using ANOVA you can able to represent a graph

说明：  一个很好的东东哦 希望大家来看和下栽哈(a good Dongdong Oh, and hope that we look at Kazakhstan crashed)

可以自动调整matlab figure的尺寸，使众多图保持一致，用于论文中图的调用比较方便，更加美观(Matlab figure can automatically adjust the size, so that many figure consistent call graph paper for more convenient, more beautiful)

书 名：MATLAB 基础及其应用教程 著作责任者：周开利邓春晖 主编 策 划 编 辑：徐凡 责 任 编 辑：孙哲伟 标 准 书 号：ISBN 978-7-301-11442-1/TP·0892 出版 者：北京大学出版社 地 

    (Title: MATLAB and its application tutorial book those responsible for: Planning Zhou Kaili SECOND NORTHWEST editor Editor: Xu Fan Editor: Sun Zhewei ISBN: ISBN 978-7-301-11442-1/TP · 0892 Publisher: Peking University Press to)

Incremental Linear Discriminant Analysis

人工鱼群算法的matlab代码实现，优化函数(AFSA,Matlab code implementation and optimization function of artificial fish swarm algorithm)

经验模态分解和希尔伯特黄变换源程序，可以直接在matlab里运行(Empirical mode decomposition and Hilbert huang transform source code, can be directly run in matlab)

Modified Julian date conversion.

说明：  粒子群优化算法是一种进化优化技术，源于对鸟群扑食的行为，是一种基于迭代的优化工具。此文件提供了基本粒子群算法、带压缩因子的粒子群算法、二阶粒子群算法、二阶振荡粒子群算法、权重改进的粒子群算法、混沌粒子群算法、基于杂交的粒子群算法、基于模拟退火的粒子群算法的MATLAB源代码。(PSO is an evolutionary optimization technique, derived from the behavior of the birds of prey, is based on iterative optimization tools. This document provides basic particle swarm algorithm, with a compression factor of the particle swarm algorithm, particle swarm optimization order, second order oscillating particle swarm algorithm, the weight particle swarm algorithm, chaotic particle swarm algorithm, based on hybrid particle swarm algorithm, based on Simulated annealing particle swarm optimization MATLAB source code.)