中文说明：机器学习m代码。主要实现机器学习中最小二乘支持向量机算法，核函数参数用PSO算法进行优化。用pso算法优化LSsvm算法参数,
English Description：
Machine learning m code. It mainly realizes the least squares support vector machine algorithm in machine learning, and optimizes the kernel function parameters with PSO algorithm. The parameters of LSSVM are optimized by PSO algorithm,