-  RA ch12 Autocorrelation in time series dataLecture note chapter 12 for regression analysis taught by Hyemin Gu in 2020 
-  RA ch11 Remedial measuresLecture note chapter 10 for regression analysis taught by Hyemin Gu in 2020 
-  RA ch10 DiagnosticsLecture note chapter 10 for regression analysis taught by Hyemin Gu in 2020 
-  RA ch9 Model selection and validationLecture note chapter 9 for regression analysis taught by Hyemin Gu in 2020 
-  RA ch8 Regression models for Quantitative and Qualitative predictorsLecture note chapter 8 for regression analysis taught by Hyemin Gu in 2020