m121

该代码为PCA主成分分析，可用于特征选择，选取贡献最大的前三个主成分(The code for the PCA principal component analysis, can be used for feature selection, select the largest contribution to the first three principal components)

matlab时频分析工具箱，时频分析工具箱包括短时傅立叶变换和二次型时频分析以及各种时频分析的matlab代码(The Time-Frequency Toolbox (TFTB) is a collection of about 100 scripts for GNU Octave and Matlab (R) developed for the analysis of non-stationary signals using time-frequency distributions. It is primary intended for researchers and engineers with some basic knowledge in signal processing.)

This code shows you how perform various boolean operation on sets using level set functions.

说明：  通过RS分析计算hurst指数，可以直接计算整个时间序列，或者小波分解后各阶的H值。(Hurst index calculated by the RS analysis. It can calculate the H value of the time series directly , or after wavelet decomposition .)

关联维计算程序，以GP算法为主，计算2范数(Correlation dimension calculation program for GP-based algorithm to calculate the 2-norm)

基于LSB的直接4bit替换法，就是直接用秘密图像像素值的高4bit去替换载体图像像素值的低4bit。 (Direct 4bit substitution, that is, the direct use of the secret image pixel values of the high-4bit image pixel value to replace the carrier' s low 4bit.)

根据边坡已有参数基于极限分析方法,求解边坡稳定性系数Fs.(TO obtain the safety factor of slope)

matlab实用程序百例，包括图形应用，界面设计，数值处理等(matlab examples)

光纤布拉格光栅匹配解调法匹配光栅的反射谱的matlab实现程序，含二维图像(Fiber Bragg grating matching demodulation matching grating reflection spectrum matlab procedures, including the two-dimensional image)

matlab针对flooding算法的仿真，可以运行(matlab simulation algorithm for flooding, you can run)