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  3. Nonlinear Modeling with Generalized Additive Models (GAMs) in R
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Exercise

Adding categorical to the auto performance model

Now you'll include categorical variables in your model. Categories are inherently linear, so you'll model them as linear terms.

Instructions

100 XP
  • Fit a GAM to the mpg data, modeling city.mpg as a sum of smooth functions of weight, length, and price, and also include the categorical terms fuel, drive, and style.
  • Use the plot() function provided to visualize the model.