用于实现支持向量机的核函数，常用的四种，多项式，线性，高斯-Used to implement SVM kernel function, four common

基于SVM数据分类及回归分析，并采用不同的核函数如RBF,sigmoid,polynomial等-the data classification and regression analysis based on SVM, by using different kinds of kernel functions, for examples, RBF,sigmoid and ploynomial and so on