16.4 Independent Component Anysis (ICA)

• “As statistically independent from one another as possible.”
• “It can be thought of as maximizing the ‘non-Gaussianity’ of the ICA components.

# Note: ICA requires the "dimRed" and "fastICA" packages.
bean_rec_trained %>%
  step_ica(all_numeric_predictors(), num_comp = 4) %>%
  plot_validation_results() + 
  ggtitle("Independent Component Analysis")