scatter_q11

数据降维算法 K_L变换是一种最优正交变换，以矢量信号X的协方差矩阵Ф的归一化正交特征矢量q所构成的正交矩阵Q，来对该矢量信号X做正交变换Y=QX，则称此变换为K-L变换（K-LT或KLT）。(Data reduction algorithm K_L optimal orthogonal transform is a transformation to vector signal covariance matrix Ф X normalized orthogonal feature vector composed of q orthogonal matrix Q, to be orthogonal to the vector signal X transformation Y = QX, called the KL transform transform (K-LT or KLT).)

Survival times are data that measure follow-up time from a defined starting point to the occurrence of a given event, for example the time from the beginning to the end of a remission period or the time from the diagnosis of a disease to death. Standard statistical techniques cannot usually be applied because the underlying distribution is rarely Normal and the data are often ‘censored’. A survival time is described as censored when there is a follow-up time but the event has not yet occurred or is not known to have occurred. For example, if remission time is being studied and the patient is still in remission at the end of the study, then that patient’s remission time would be censored. If a patient for some reason drops out of a study before the end of the study period, then that patient’s follow-up time would also be considered to be

the source code used for image compression using wavelet transform. to use this codes u have to first convert RGB image to grayscale and also its colourmap

《MATLAB6.0数学手册》 本教程按逻辑编排，自始至终用实例描述，既适用于初学者自学，也适用于高级 MATLAB 用户。可作为高等数学、数值分析、工程数学、数学建模、线性规划等课程的教 学参考书，也可作为科技工作者学习和使用MATLAB 的参考书，还可作为数学实验的教学 用书，特别适合用作理工科大学生学习数学课程的教学辅导书。(" MATLAB6.0 Mathematics Handbook," this tutorial logically arranged from beginning to end examples describing both self-study for beginners, but also to advanced MATLAB users. Can be used as advanced mathematics, numerical analysis, engineering, mathematics, mathematical modeling, linear programming courses teaching reference books, but also can be used as scientific and technological workers to learn and use MATLAB reference books, but also as an experimental teaching mathematics books, in particular, suitable for science and engineering students to study mathematics curriculum counseling books.)

qr分解的c语言程序,可以嵌入matlab使用(simulated decomposition of the c language program, can be embedded using Matlab)

数字基带信号处理的matlab程序，无压缩密码，使用matlab2008编写(Digital baseband signal processing matlab program, uncompressed password, use matlab2008 write)

这是一个MADLAB的例程,对于数学建模有很大帮助(This is a MADLAB routines are very helpful for mathematical modeling)

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.)

说明：  本程序给出了最小二乘滤波算法的具体编程，程序中分析比较了自相关算法、协方差算法、前后向加窗算法的滤波效果(This procedure gives the least squares filtering algorithm specific programming, program analysis and comparison of the auto-correlation algorithm, covariance method, before and after windowing algorithm to the filtering effect)

two dimensional gausian