refine doc, with Rd

R-package/man/setinfo.Rd

@@ -0,0 +1,33 @@
+% Generated by roxygen2 (4.0.1): do not edit by hand
+\docType{methods}
+\name{setinfo}
+\alias{setinfo}
+\alias{setinfo,xgb.DMatrix-method}
+\title{Set information of an xgb.DMatrix object}
+\usage{
+setinfo(object, ...)
+
+\S4method{setinfo}{xgb.DMatrix}(object, name, info)
+}
+\arguments{
+\item{object}{Object of class "xgb.DMatrix"}
+
+\item{name}{the name of the field to get}
+
+\item{info}{the specific field of information to set}
+
+\item{...}{other parameters}
+}
+\description{
+Set information of an xgb.DMatrix object
+}
+\examples{
+data(iris)
+iris[,5] <- as.numeric(iris[,5]=='setosa')
+dtrain <- xgb.DMatrix(as.matrix(iris[,1:4]), label=iris[,5])
+labels <- getinfo(dtrain, 'label')
+setinfo(dtrain, 'label', 1-labels)
+labels2 <- getinfo(dtrain, 'label')
+stopifnot(all(labels2 == 1-labels))
+}
+