本书主要讲述了以健身调查数据示范数据的清理和准备、多元回归分析.、用美国经济数据构建二阶最小二乘模型、以心理学数据为例示范探索性因子分析-This book focuses on the health survey data to model the data cleaning and preparation, multiple regression analysis, with building a second U.S. economic data, least squares models