Statistical Computing with R (2nd Edition).pdf

englianhu commented 4 years ago

[问答]求Statistical Computing with R 客课后答案

Pdf电子书：https://englianhu.files.wordpress.com/2020/10/statistical-computer-with-r-2nd-edition.pdf

englianhu commented 4 years ago

Extending the linear model with R.pdf

https://github.com/robjhyndman/ETC3580/blob/master/Faraway%20(2016)%20Extending%20the%20linear%20model%20with%20R.pdf

englianhu commented 4 years ago

https://github.com/englianhu/report/issues/9#issue-733422198 here i tried to build random effects while noticed doesn't enhance my model.

#degree = 2
mm000 = lm(Profit ~ Date * 
              poly(Bettor, degree = 2, raw = FALSE) * 
              poly(Won, degree = 2, raw = FALSE) * 
              poly(Cancelled, degree = 2, raw = FALSE) * 
              poly(Rebates, degree = 2, raw = FALSE) * 
              (1 + Won * Cancelled | Bettor) * (Type / Date), smp2) %>% 
    extractAIC

mm001 = lm(Profit ~ Date * 
               poly(Bettor, degree = 2, raw = FALSE) * 
               poly(Won, degree = 2, raw = FALSE) * 
               poly(Cancelled, degree = 2, raw = FALSE) * 
               poly(Rebates, degree = 2, raw = FALSE) * 
               (1 + Won * Cancelled / Bettor) * (Type / Date), smp2) %>% 
    extractAIC

#degree = 3
mm002 = lm(Profit ~ Date * 
              poly(Bettor, degree = 3, raw = FALSE) * 
              poly(Won, degree = 3, raw = FALSE) * 
              poly(Cancelled, degree = 3, raw = FALSE) * 
              poly(Rebates, degree = 3, raw = FALSE) * 
              (1 + Won * Cancelled | Bettor) * (Type / Date), smp2) %>% 
    extractAIC

mm003 = lm(Profit ~ Date * 
               poly(Bettor, degree = 3, raw = FALSE) * 
               poly(Won, degree = 3, raw = FALSE) * 
               poly(Cancelled, degree = 3, raw = FALSE) * 
               poly(Rebates, degree = 3, raw = FALSE) * 
               (1 + Won * Cancelled / Bettor) * (Type / Date), smp2) %>% 
    extractAIC

englianhu commented 4 years ago

Explanation on random effects & nested lm via randomeffs2.pdf lm - random effects & nested model.jpg