lightgbm (version 3.2.1)

lgb.Dataset.set.reference: Set reference of lgb.Dataset

Description

If you want to use validation data, you should set reference to training data

Usage

lgb.Dataset.set.reference(dataset, reference)

Arguments

dataset

object of class lgb.Dataset

reference

object of class lgb.Dataset

Value

the dataset you passed in

Examples

# NOT RUN {
data(agaricus.train, package ="lightgbm")
train <- agaricus.train
dtrain <- lgb.Dataset(train$data, label = train$label)
data(agaricus.test, package = "lightgbm")
test <- agaricus.test
dtest <- lgb.Dataset(test$data, test = train$label)
lgb.Dataset.set.reference(dtest, dtrain)
# }