提供了几种最小二乘法程序包括：批处理最小二乘参数估计，递推最小二乘参数估计，遗忘因子递推最小二乘参数估计，递推增广最小二乘参数估计。-Provides several least squares procedures include: Batch least squares parameter estimation, recursive least squares parameter estimation, forgetting factor recursive least squares parameter estimation, Recursive Extended Least Squares Parameter Estimation.