simple_example

K-nearest neighbors 搜索 聚类时经常使用的一种方法 国外网站转载( The following utilities are provided: - Nearest neighbor - K-Nearest neighbors - Radius Search They al supports N-dimensions and work on double, it is possible to choose if return the distances. Here is a time comparison with a vectrized m-code: N=1000000 number of reference points Nq=100 number of query points dim=3 dimension of points k=3 number of neighbor tic [idc,dist]=BruteSearchMex(p ,qp , k ,k) MEX toc tic [idc,dist]=knnsearch(qp,p,k) VECTORIZED M-CODE toc p=rand(N,dim) qp=rand(Nq,dim) Output: Elapsed time is 0.962640 seconds. Elapsed time is 18.813100 seconds. )

MATLAB数学建模工具箱。MATLAB数学建模工具箱。(MATLAB TOOLBOX)

建模啊我说的是建模什么大的 ，。自己可以详细看看(jianmo)

说明：  时频分布，并附有常用时频分析信号。附带演示程序。(Time-frequency distribution, with common time-frequency analysis of signals. Incidental demo.)

asa r rtr tr tr rtrtewet

This paper presents a new and efficient approach for capacitor placement in radial distribution systems (RDS) that determine the optimal locations and size of capacitor with an objective of improving the voltage profile and reduction of power loss. The solution methodology has two parts: in part one the loss sensitivity factors (LSF) are used to select the candidate locations for the capacitor placement and in part two a new algorithm that employs Dijkstra Algorithm (DA) is used to estimate the optimal size of capacitors at the optimal buses determined in part one. The main advantage of the proposed method is that it does not require any external control parameters. The other advantage is that it handles the objective function and the constraints separately. The proposed method is applied to 33 & 69 RDS. The solutions obtained by the proposed method are compared with other methods. The proposed method has outperformed the other methods in terms of the quality of solution. OPTIMAL C

music算法的变种，基于变化信噪比，用于DOA估计。(music algorithm variants, based on the change in signal to noise ratio for the DOA estimates.)

本代码为计算快速汉克变换的matlab源程序。快速汉克变换为经典的数值算法，在地球物理建模中有极其重要的地位(This code for calculations quickly Hank transform matlab source. Rapid Hank transformation as a classic numerical algorithm in geophysics modeling in a very important position)

说明：  Gui设计产生mesh,surf,peaks(Gui have mesh design, surf, peaks)

通过matlab编制程序，对非线性方程组迭代求解。(Through matlab programming, iterative solution of the nonlinear equations)