Inizia subitoInizia gratis

Plotting the motorcycle crash model and data

For our first plotting exercise, we'll add partial residuals to the partial effect plot of a GAM so as to compare the model to the data.

Questo esercizio fa parte del corso

Nonlinear Modeling with Generalized Additive Models (GAMs) in R

Visualizza corso

Istruzioni dell'esercizio

  • Plot the model (mod) that uses mcycle data. Add partial residuals to the plot.
  • Make a second plot, making partial residuals more visible by changing the shape using the pch argument, and size of the residuals using the cex argument. Set both the pch and cex arguments to 1.

esercizio interattivo pratico

Prova questo esercizio completando questo codice di esempio.

library(mgcv)
# Fit the model
mod <- gam(accel ~ s(times), data = mcycle, method = "REML")

# Make the plot with residuals
plot(mod, ___)

# Change shape of residuals
___
Modifica ed esegui il codice