43 lines
954 B
R
43 lines
954 B
R
% Generated by roxygen2 (4.1.0): do not edit by hand
|
|
% Please edit documentation in R/getinfo.xgb.DMatrix.R
|
|
\docType{methods}
|
|
\name{getinfo}
|
|
\alias{getinfo}
|
|
\alias{getinfo,xgb.DMatrix-method}
|
|
\title{Get information of an xgb.DMatrix object}
|
|
\usage{
|
|
getinfo(object, ...)
|
|
|
|
\S4method{getinfo}{xgb.DMatrix}(object, name)
|
|
}
|
|
\arguments{
|
|
\item{object}{Object of class \code{xgb.DMatrix}}
|
|
|
|
\item{...}{other parameters}
|
|
|
|
\item{name}{the name of the field to get}
|
|
}
|
|
\description{
|
|
Get information of an xgb.DMatrix object
|
|
}
|
|
\details{
|
|
The information can be one of the following:
|
|
|
|
\itemize{
|
|
\item \code{label}
|
|
\item \code{weight}
|
|
\item \code{base_margin}
|
|
\item \code{nrow}
|
|
}
|
|
}
|
|
\examples{
|
|
data(agaricus.train, package='xgboost')
|
|
train <- agaricus.train
|
|
dtrain <- xgb.DMatrix(train$data, label=train$label)
|
|
labels <- getinfo(dtrain, 'label')
|
|
setinfo(dtrain, 'label', 1-labels)
|
|
labels2 <- getinfo(dtrain, 'label')
|
|
stopifnot(all(labels2 == 1-labels))
|
|
}
|
|
|