bellanim

数据挖掘中CART算法实现（用MATLAB实现）(CART data mining algorithm (MATLAB))

This guide can draw a mandelbrot figure. In default values it calculates Z=Z^2+C for 20 iterations, where Z initally equal to zero and C has the values of every pixel created by meshgrid function(built-in). although mandelbrot equation is Z=Z^2+C you can change the degree of the equation between 1 - 50. higher number in iteration, points in axes gives better results in image besides more resulting time. to zoom an area of the figure you must aproximately choose the point and then change the center values to this point values then push Show Graph button. because of this is the first version there can be any lack of usage. (This guide can draw a mandelbrot figure. In default values it calculates Z=Z^2+C for 20 iterations, where Z initally equal to zero and C has the values of every pixel created by meshgrid function(built-in). although mandelbrot equation is Z=Z^2+C you can change the degree of the equation between 1- 50. higher number in iteration, points in axes gives better results in image besides more resulting time. to zoom an area of the figure you must aproximately choose the point and then change the center values to this point values then push Show Graph button. because of this is the first version there can be any lack of usage. )

主元分析法的简单程序，可以以此为基础进步发展改进。(Principal component analysis of a simple procedure that can improve as a basis for progress and development.)

利用MATLAB进行数据拟合，常见的数据拟合方法。包括：一元函数插值、样条插值、多项式插值或拟合 、曲线拟合、拉格朗日插值法等。(MATLAB data fitting, common data fitting methods. It includes: interpolation of unitary function, spline interpolation, polynomial interpolation or fitting, curve fitting, Lagrange interpolation, etc.)

(有源代码)数值分析作业,本文主要包括两个部分,第一部分是常微分方程(ODE)的三个实验题,第二部分是有关的拓展讨论,包括高阶常微分的求解和边值问题的求解(BVP).文中的算法和算例都是基于Matlab计算的.ODE问题从刚性(STIFFNESS)来看分为非刚性的问题和刚性的问题,刚性问题(如大系数的VDP方程)用通常的方法如ODE45来求解,效率会很低,用ODE15S等,则效率会高多了.而通常的非刚性问题,用ODE45来求解会有很好的效果.从阶次来看可以分为高阶微分方程和一阶常微分方程,高阶的微分方程一般可以化为状态空间(STATE SPACE)的低阶微分方程来求解.从微分方程的性态看来,主要是微分方程式一阶导系数大的时候,步长应该选得响应的小些.或者如果问题的性态不是太好估计的话,用较小的步长是比较好的,此外的话Adams多步法在小步长的时候效率比R-K(RUNGE-KUTTA)方法要好些,而精度也高些,但是稳定区间要小些.从初值和边值来看,也是显著的不同的.此外对于非线性常微分方程还有打靶法,胞映射方法等.而对于微分方程稳定性的研究,则诸如相平面图等也是不可缺少的工具.值得提出的是,除了用ode系类函数外,用simulink等等模块图来求解微分方程也是一种非常不错的方法,甚至是更有优势的方法(在应用的角度来说).((Source code) numerical analysis homework, this docment includes two parts, the first is ordinary differential equations (ODE) of the three examples, the second part is about the expansion of the discussion, including the higher-order ordinary differential & boundary value solution Problems (BVP). the text of the algorithm and numerical examples are based on the Matlab. ODE from the rigid (STIFFNESS) look into the issue of non-rigid and rigid problem, rigid problems (such as large coefficient VDP equation) such as using the always method ODE45 used to solve the problems , efficiency will be low, with ODE15S the other hand, many of the high efficiency. and the usual problem of non-rigid, there will be used to solve ODE45 very good results. Judging from the order can be for high-order differential equations and first-order ordinary differential equations, higher-order differential equations can be transformed into a general state space (STATE SPACE) used to solve the low-order different)

实现不敏卡尔曼滤波,可以用于雷达目标跟踪，多传感器数据融合等等！！！(this matlab program gieves the UKF)

说明：  MSRCR可用于图像增强，去雾。效果很不错，对于研究很在参考价值。可用于论文最后实验对比。(MSRCR can be used for image enhancement and fog removal. The effect is very good, very valuable reference for research. It can be used for experimental comparison at the end of the paper.)

Calculates the excitation density for electrons in a semiconductor for incident laser light of 800nm wavelegth out of the number of photons (repetition rate und puls duration required)

学习C的常用工具书，里面包含了常用的函数，您一定用的着的！，希望对您有所帮助！(if you want to study C language well ,you should use this book to help you!)

功能描述：用matlab语言实现Levinson-Durbin算法 函数名：Levinson_Durbin_Algo 输入参数： (1)R:自相关矩阵或者其估计值 (2)P:AR模型的阶数 输出参数： (1)A:p阶AR模型的参数,它是一个长度为P+1的行向量 (2)E:噪声功率 调用函数：无 被调用：L_D_sim.m 作者：mingcheng 编写时间：2009-11-13 修改时间：2009-11-13 版本：V1.0 (Function Description: The matlab language Levinson-Durbin algorithm function name: Levinson_Durbin_Algo Input parameters: (1) R: correlation matrix or its estimated value (2) P: AR model orders output parameters: (1) A: p-order AR model parameters, it is a line of length P+1 vector (2) E: noise power call the function: No to be called: L_D_sim.m Study: mingcheng write time :2009-11-13 modified :2009-11-13 version: V1.0 )