data-analysis

matlab图像预处理，包括灰度化，对数变换，直方图均衡化，线性平滑滤波，中值滤波，自适应滤波，图像锐化，图像二值化，各类边缘检测算子等等(matlab image preprocessing, including gray-scale and logarithmic transformation, histogram equalization, linear filtering, median filtering, adaptive filtering, image sharpening, image binarization, all kinds of edge detection operator, etc.)

非常好用的MATLAB程序，不下会后悔的(MATLAB is very useful procedure, we will regret over the)

一个非常实用且能进行模糊综合评判的matlab程序(A very practical and can be fuzzy comprehensive evaluation of the matlab program)

影像處理(mapge ) AND & OR

10折交叉验证代码 自编函数 可用于任何数据 直接使用即可(10 fold cross validation code editing the function can be used in any data can be used directly )

to detect the energy in cognitive radio

1) 已知x=[1:15], y=[12 34 56 78 99 123 165 198 243 277 353 345 303 288 275], 用多项式进行拟合，给出拟合多项式，(所选拟合多项式阶数不同，拟合结果不同，请你选择适当的阶数进行拟合)，并绘出原始数据点、拟合曲线和95％置信区间（confidence bounds）的图形 . 2) 根据下面数学模型建立仿真模型，并在一个示波器中把它们的波形仿真出来。 (1) are known to x = [1:15], y = [12 34 56 78 99 123 165 198 243 277 353 345 303 288 275], with polynomial fitting, given the polynomial fitting, (the election order polynomial fitting different fitting results to differ, please select the appropriate order of fit), and draw original data points, fitting curve and 95 confidence interval (confidence bounds) graphics .2 ) In accordance with the following mathematical model for the establishment of simulation model, and in an oscilloscope waveform in their simulation out.)

用vc调用matlab7.0写的小程序，可以实现简单的控制系统仿真演示(with vc call matlab7.0 write small programs, can achieve a simple control system simulation demo)

MATLAB图像处理的各种函数，实例源代码 ch2_1_1：查看直方图（§2.1.3） ch2_2_1：显示图像（§2.2.2）等(MATLAB image processing a variety of functions, procedures)

以上代码是求解椭圆微分算子的特征值问题的Matlab源代码，采用有限元法的思想来编写的，程序计算结果和理论是相符的。(The above code is to solve the elliptic differential operator eigenvalue problem of the Matlab source code, using the finite element method to write the ideas, procedures, results and theoretical calculation is consistent.)