Code and Results for Chapter 6 (Multiple Linear Regression)

• chap_6_prob_1.R (modeling the cities dataset)
  
• chap_6_prob_2.R (head production in cement)
  
• chap_6_prob_3.R (hill climbing data)
  
• chap_6_prob_4.R (the hills2000 dataset)
  
• chap_6_prob_5.R (robust linear models)
  
• chap_6_prob_6.R (nihills with an interaction term)
  
• chap_6_prob_7.R (the variance inflation factor for the litters dataset)
  
• chap_6_prob_8.R (ridge regression with cross validation)
  
• chap_6_prob_9.R
  
• chap_6_prob_10.R
  
• chap_6_prob_11.R
  
• chap_6_prob_14.R