高斯光束轴向光强模拟

f the input is a numeric array, it returns a cell array of strings of on or off depending on the logical outcome. Conversely, if the input is a cell array of strings of on or off , then it does the reverse, i.e. returns the logical matrix where on is true and off is false. It is very useful when using set/get on arrays of handle objects or arrays of properties/values. Example: onoff( [0, 1, 0]) gives { off , on , off } onoff({ on , on , off }) gives [1, 1, 0] It also works for mixed cell array inputs, and for other string pairs: yes/no, ok/cancel, open/closed

一个KNN的matlab程序，供感兴趣的人士学习(A KNN matlab program for those interested in learning)

S4VM 对传统的S3VM 进行了改进。传统的S3VM 基于低密度假设，它试图找到一个低密度的分界线， 也就是更倾向于决策边界穿过特征空间的低密度区域。S4VM 和S3VM 的不同点在于，S3VM 试图把注意力 集中在一个最优的低密度分界线上，而S4VM 则同时关注多个可能的低密度分界线。之所以这样做，是因为 给定一些有标记的点和大量未标记的点，可能存在着不止一个“间隔”较大的低密度分界线（如图2 ），基于 有限的标记样本，很难决定哪个是最好的。虽然这些低密度分界线都与有限的标记样本吻合，但它们之间差 异很大，因此如果选择错了，会有一个很大的损失，导致性能下降。所以S4VM 试图考虑所有可能的低密度 分界线。 (Over the past decade, many improved versions are proposed to solve every different specific problem of semi-supervised support vector machines, for example: to the inefficiency issue, meanS3VM is introduced to performance degenerate problem, S4VM is proposed)

developing envelope matlab prog

用双线性变换法设计IIR数字滤波器,程序，用图形显示(Bilinear transformation method of IIR digital filter design, procedures, graphical display)

对于频率估计有效的研究方法 其中有matlab的原始的程序(Frequency estimation matlab)

说明：  Matlab下用的逐步定线方法解决逢山开路问题。加载后，运行主程序mutiline，结果在mountainoutput中。(This is the program for Matlab to solve the mountain road problem.)

汪小帆，陈关荣版复杂网络理论及应用书中的部分程序，包括WS，BA，internet，NW，tiers，waxman等等。(Wasserman s.and Faust k, social edition complex network theory and application of the book is part of the program, including WS, BA, Internet, NW, tiers, waxman and so on. )

csdp algorithm in matlab

说明：  qam 信号的产生和解调，以及误码率的计算，内包含多个小程序。(qam signal generation and demodulation, and bit error rate calculation, which contains many small programs.)