sample1.rst

Regression

This is a regression, Max-problem sample. :

if __name__ == "__main__":
  from sklearn.datasets import fetch_california_housing
  from bgp.skflow import SymbolLearning

  data = fetch_california_housing()
  x = data["data"][:100]
  y = data["target"][:100]

  sl = SymbolLearning(loop="MultiMutateLoop", pop=500, gen=2, random_state=1)
  sl.fit(x, y)
  score = sl.score(x, y, "r2")
  print(sl.expr)