Code and Results for Chapter 6

• section_6_1_poly_w_several_predictors.R (implements this section of the book)
  
• chap_6_prob_1.R (Cake data)
  
• chap_6_prob_2.R (the lathe data set)
  
• chap_6_prob_4.R (the twins data set)
  
• chap_6_prob_5.R (model variation with temperature)
  
• chap_6_prob_6.R (height growth differences between male and female)
  
• chap_6_prob_8.R (parallel regression surfaces)
  
• chap_6_prob_8.R (parallel regression surfaces)
  
• chap_6_prob_9.R (numerics and model plots for this problem)
  
• chap_6_prob_10.R (Gothic and Romanesque cathedrals)
  
• chap_6_prob_11.R (modeling the wind direction in the windmill data)
  
• chap_6_prob_12.R (land valuation)
  
• chap_6_prob_13.R (sex discrimination)
  
• chap_6_prob_15.R (pens of turkeys)
  
• chap_6_prob_16.R (estimating the maximum value)
  
• chap_6_prob_17.R (inverse regression in Jevons' coin data)
  
• chap_6_prob_18.R (world record running times)
  
• chap_6_prob_19.R (using the delta method)
  
• chap_6_prob_23.R (using wind to your advantage)