% Generated by roxygen2: do not edit by hand % Please edit documentation in R/lgb.Dataset.R \name{lgb.slice.Dataset} \alias{lgb.slice.Dataset} \title{Slice a dataset} \usage{ lgb.slice.Dataset(dataset, idxset) } \arguments{ \item{dataset}{Object of class \code{lgb.Dataset}} \item{idxset}{an integer vector of indices of rows needed} } \value{ constructed sub dataset } \description{ Get a new \code{lgb.Dataset} containing the specified rows of original \code{lgb.Dataset} object \emph{Renamed from} \code{slice()} \emph{in 4.4.0} } \examples{ \donttest{ \dontshow{setLGBMthreads(2L)} \dontshow{data.table::setDTthreads(1L)} data(agaricus.train, package = "lightgbm") train <- agaricus.train dtrain <- lgb.Dataset(train$data, label = train$label) dsub <- lgb.slice.Dataset(dtrain, seq_len(42L)) lgb.Dataset.construct(dsub) labels <- lightgbm::get_field(dsub, "label") } }