请注意,init_score
不会保存到二进制文件中。如果需要,请在加载 Dataset 后重新设置它。
lgb.Dataset.save(dataset, fname)
传入的 dataset
# \donttest{
data(agaricus.train, package = "lightgbm")
train <- agaricus.train
dtrain <- lgb.Dataset(train$data, label = train$label)
lgb.Dataset.save(dtrain, tempfile(fileext = ".bin"))
#> [LightGBM] [Info] Saving data to binary file /tmp/RtmpViPAUB/file13c59f2fec4.bin
# }