R: Construct validation data

lgb.Dataset.create.valid {lightgbm}

R Documentation

Construct validation data

Description

Construct validation data according to training data

Usage

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)

[Package lightgbm version 2.2.2 Index]