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support vector machine for multi class classification

微分进化算法的其中两个子程序，第二部分内容(Differential evolution algorithm)

说明：  智能家居控制，传感器搭配使用，方便快捷实惠(Smart home control, sensor collocation, convenient, fast and affordable)

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说明：  目前的代码是一个matlab函数，它提供给定信号x[n]的短时傅立叶变换（stft）。该函数是matlab命令“光谱图”的一个替代项。功能输出为： 1）一个具有复杂stft系数的矩阵，该矩阵具有跨列时间和跨行频率； 2）频率矢量； 3）时间矢量。 为了阐明函数的用法，给出了一个示例。为了方便起见，输入和输出参数在函数的开头给出。(The present code is a Matlab function that provides a Short-Time Fourier Transform (STFT) of a given signal x[n]. The function is an alternative of the Matlab command spectrogram The output of the function is 1) a matrix with the complex STFT coefficients with time across the columns and frequency across the rows; 2) a frequency vector; 3) a time vector. An example is given in order to clarify the usage of the function. For convenience, the input and output arguments are given in the beginning of the function.)

说明：  analysis of a damper in mrf fluid

说明：  采用能量等值法计算骨架曲线的屈服荷载及位移等(Calculating yield load and displacement of skeleton curve by energy equivalent method)

我自己的收藏家，喜欢的下吧-my own collectors and the like are you thank

说明：  粒子群算法优化支持向量机算法，极大提高算法的精确性和运行速度(Particle swarm optimization (PSO) optimizes SVM algorithm, which greatly improves the accuracy and running speed of the algorithm)

说明：  线性核支持向量机，径向基支持向量机，多项式支持向量机(Linear kernel support vector machine, radial basis support vector machine, polynomial support vector machine)