如何在tidymodels
中为boost_tree()
插入正则化参数?在普通的lightgbm
包中有调谐参数lambda_l1
.我也想用tidymodels
个.
我试着这样写,但我不确定我是否做得对:
lgbm_model <-
boost_tree(
mode = "regression",
# mtry = 1,
trees = tune(),
min_n = tune(),
tree_depth = tune(),
learn_rate = tune(),
loss_reduction = tune()
) %>%
set_engine("lightgbm", lambda = 1)