출처: http://machinelearningmastery.com/how-to-get-started-with-machine-learning-algorithms-in-r/ Linear Regression Ordinary Least Squares Regression Ordinary Least Squares (OLS) regression is a linear model that seeks to find a set of coefficients for a line/hyper-plane that minimise the sum of the squared errors. [crayon-5a5dfba6013e8317921030/] Stepwize Linear Regression Stepwise Linear Regression is a method that makes use of linear regression to discover …