% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/xgb.DMatrix.R
\name{xgb.DMatrix.hasinfo}
\alias{xgb.DMatrix.hasinfo}
\title{Check whether DMatrix object has a field}
\usage{
xgb.DMatrix.hasinfo(object, info)
}
\arguments{
\item{object}{The DMatrix object to check for the given \code{info} field.}

\item{info}{The field to check for presence or absence in \code{object}.}
}
\description{
Checks whether an xgb.DMatrix object has a given field assigned to
it, such as weights, labels, etc.
}
\examples{
x <- matrix(1:10, nrow = 5)
dm <- xgb.DMatrix(x, nthread = 1)

# 'dm' so far does not have any fields set
xgb.DMatrix.hasinfo(dm, "label")

# Fields can be added after construction
setinfo(dm, "label", 1:5)
xgb.DMatrix.hasinfo(dm, "label")
}
\seealso{
\code{\link[=xgb.DMatrix]{xgb.DMatrix()}}, \code{\link[=getinfo.xgb.DMatrix]{getinfo.xgb.DMatrix()}}, \code{\link[=setinfo.xgb.DMatrix]{setinfo.xgb.DMatrix()}}
}