25 lines
558 B
R
25 lines
558 B
R
% Generated by roxygen2 (4.0.1): do not edit by hand
|
|
\name{slice}
|
|
\alias{slice}
|
|
\title{Get a new DMatrix containing the specified rows of
|
|
orginal xgb.DMatrix object}
|
|
\usage{
|
|
slice(object, ...)
|
|
}
|
|
\arguments{
|
|
\item{object}{Object of class "xgb.DMatrix"}
|
|
|
|
\item{idxset}{a integer vector of indices of rows needed}
|
|
}
|
|
\description{
|
|
Get a new DMatrix containing the specified rows of
|
|
orginal xgb.DMatrix object
|
|
}
|
|
\examples{
|
|
data(iris)
|
|
iris[,5] <- as.numeric(iris[,5])
|
|
dtrain <- xgb.DMatrix(as.matrix(iris[,1:4]), label=iris[,5])
|
|
dsub <- slice(dtrain, c(1,2,3))
|
|
}
|
|
|