Construct validation data

Construct validation data according to training data

lgb.Dataset.create.valid(dataset, data, info = list(), ...)

Arguments

dataset	lgb.Dataset object, training data
data	a matrix object, a dgCMatrix object or a character representing a filename
info	a list of information of the lgb.Dataset object
...	other information to pass to info.

Value

constructed dataset

Examples

library(lightgbm)
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.create.valid(dtrain, test$data, label = test$label)