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feisher
PCA的步骤:
1 先将数据中心化;
2 求得的协方差矩阵;
3 求出协方差矩阵的特征值与特征向量;
4 将特征值与特征向量进行排序;
5 根据要降维的维数d’,求得要降维的投影方向;
6 求出降维后的数据;
(PCA steps: 1 of the first data center 2 covariance matrix obtained 3 obtained covariance matrix eigenvalues and eigenvectors 4 eigenvalues and eigenvectors will be sorted 5 according to the dimension of dimension reduction d ' , seek to reduce the dimension projection direction 6, the data obtained after the dimensionality reduction )
- 2010-10-28 11:25:05下载
- 积分:1
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dup.tar
Ns-2 learning basics
- 2014-01-18 02:01:53下载
- 积分:1
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gonglvpu
随机信号功率谱估计,在频域对信号进行分析,用Matlab编程(Random signal power spectrum estimation using Matlab programming)
- 2012-11-27 14:16:23下载
- 积分:1
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Simulation_code_DSB_SC
DSB-SC Modulation Matlab code
- 2014-02-13 02:13:44下载
- 积分:1
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Birch-matlab--master
说明: BIRCH (balanced iterative reducing and clustering using hierarchies) is an unsupervised data mining algorithm used to perform hierarchical clustering over particularly large data-sets.[1] An advantage of BIRCH is its ability to incrementally and dynamically cluster incoming, multi-dimensional metric data points in an attempt to produce the best quality clustering for a given set of resources (memory and time constraints). In most cases, BIRCH only requires a single scan of the database.
- 2020-09-01 05:43:35下载
- 积分:1
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dectobin
matlab实现任意十进制和二进制的转换(matlab to achieve arbitrary decimal and binary conversion)
- 2009-12-10 20:14:06下载
- 积分:1
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wave-nn
说明: 基于小波神经网络的预测算法,MATLAB下通过,效率较高。(Wavelet neural network based prediction algorithm, MATLAB adopted under, more efficient.)
- 2010-05-02 21:42:49下载
- 积分:1
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Matlab-financial-analysis-
Matlab 金融分析与金融数据处理(Matlab financial analysis and financial digit calculate)
- 2011-06-29 19:36:30下载
- 积分:1
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Simulink-Modeling-and-Simulation
针对初学者的simulink 的建模与仿真,详细讲述系统仿真原理(Simulink modeling and simulation for beginners, and a detailed account of the principles of system simulation)
- 2014-11-02 14:24:56下载
- 积分:1
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r_sn
R/S分析法中如何求解重标极差,得到后使用最小二乘估计就可以得到,Hurst指数(R/S analysis method on how to solve the rescaled range, obtained after the least-squares estimation can be used, Hurst index)
- 2011-11-15 21:20:49下载
- 积分:1