matlab-help

说明：  logistic回归分析相关资料分析总结1(logistic regression analysis, Data Analysis Summary 1)

This paper addresses the problem of segmenting an image into regions. We defi ne a predicate for measuring the evidence for a boundary between two regions using a graph-based representation of the image. We then develop an effi cient segmentation algorithm based on this predicate, and show that although this algorithm makes greedy decisions it produces segmentations that satisfy global properties. We apply the al-gorithm to image segmentation using two diff erent kinds of local neighborhoods in constructing the graph, and illustrate the results with both real and synthetic images. The algorithm runs in time nearly linear in the number of graph edges and is also fast in practice. An important characteristic of the method is its ability to preserve detail in low-variability image regions while ignoring detail in high-variability regions.

Numerical methods for Speacial Functions for matlab

Captures a video of the 3D plot in the current axis as it rotates based on ViewZ and saves it as FileName.mpg .

使用一般PI模型拟合非线性曲线，最小二乘法参数辨识，逆模型前馈(The general PI model is used to fit the nonlinear curve, the least square parameter identification, and the inverse model feedforward.)

说明：  利用matlab的实现分数阶的相图，实现绘制，可应用于分岔。(Using MATLAB to realize the fractional order phase diagram.)

matlab s easy lessons

本书基于MATLAB 5.2版，提供了使用MATLAB的实践性指导。(Book based on MATLAB 5.2 version, provides a practical guide to using MATLAB.)

An efficient algorithm for identification of PIL on Solar Dynamic Observatory (SDO) Helioseismic and Magnetic Imager (HMI) magnetograms. Detailed description will appear in the paper: Volobuev, D.M. Polarity-Inversion Line Preceding X-class Flare, Solar Physics, Initial data (65 megabyte .fits magnetograms) can be downloaded from http://hmi.stanford.edu/ - Model_test_PIL_Open.m script - calculates parameters of the example(simulated S-curve) - SDO_PIL_Open.m script - identifies PIL on SDO magnetogram and calculates its parameters - 5 functions are used within these scripts

DDS的原理及matlab实现。文中分析了理想状态下和有误差状态下模型，并给出源代码。(the realization of DDS by matlab)