Initialization

# Install the Python backend (only needs to be done once). 
leaf::install_leaf()

# Load package 
library(leaf)

if (!backend_available()) {
  message("Install backend with leaf::install_leaf()")
}  

# Initialize the symbolic regressor
regressor = leaf::SymbolicRegressor$new(
  engine = "rsrm", 
  loss = 'PoissonDeviance', 
  num_iterations = 3,
  base = list(verbose = FALSE)
)