% Generated by roxygen2: do not edit by hand % Please edit documentation in R/lgb.Dataset.R \name{setinfo} \alias{setinfo} \alias{setinfo.lgb.Dataset} \title{Set information of an lgb.Dataset object} \usage{ setinfo(dataset, ...) \method{setinfo}{lgb.Dataset}(dataset, name, info, ...) } \arguments{ \item{dataset}{Object of class "lgb.Dataset"} \item{...}{other parameters} \item{name}{the name of the field to get} \item{info}{the specific field of information to set} } \value{ passed object } \description{ Set information of an lgb.Dataset object } \details{ The \code{name} field can be one of the following: \itemize{ \item \code{label}: label lightgbm learn from ; \item \code{weight}: to do a weight rescale ; \item \code{init_score}: initial score is the base prediction lightgbm will boost from ; \item \code{group}. } } \examples{ \dontrun{ library(lightgbm) data(agaricus.train, package = "lightgbm") train <- agaricus.train dtrain <- lgb.Dataset(train$data, label = train$label) lgb.Dataset.construct(dtrain) labels <- lightgbm::getinfo(dtrain, "label") lightgbm::setinfo(dtrain, "label", 1 - labels) labels2 <- lightgbm::getinfo(dtrain, "label") stopifnot(all.equal(labels2, 1 - labels)) } }