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  3. Introduction to Regression in R

Exercise

Drawing diagnostic plots

It's time for you to draw these diagnostic plots yourself. Let's go back to the Taiwan real estate dataset and the model of house prices versus number of convenience stores.

Recall that autoplot() lets you specify which diagnostic plots you are interested in.

  • 1 residuals vs. fitted values
  • 2 Q-Q plot
  • 3 scale-location

mdl_price_vs_conv is available, and ggplot2 and ggfortify are loaded.

Instructions

100 XP
  • Plot the three diagnostic plots (numbered 1 to 3) for mdl_price_vs_conv. Use a layout of three rows and one column.