b4d97d3cb8
* [R] better argument check in xgb.DMatrix; fixes #1480 * [R] showsd was a dummy; fixes #2044 * [R] better categorical encoding explanation in vignette; fixes #1989 * [R] new roxygen version docs update
32 lines
991 B
R
32 lines
991 B
R
% Generated by roxygen2: do not edit by hand
|
|
% Please edit documentation in R/xgb.Booster.R
|
|
\name{xgb.parameters<-}
|
|
\alias{xgb.parameters<-}
|
|
\title{Accessors for model parameters.}
|
|
\usage{
|
|
xgb.parameters(object) <- value
|
|
}
|
|
\arguments{
|
|
\item{object}{Object of class \code{xgb.Booster} or \code{xgb.Booster.handle}.}
|
|
|
|
\item{value}{a list (or an object coercible to a list) with the names of parameters to set
|
|
and the elements corresponding to parameter values.}
|
|
}
|
|
\description{
|
|
Only the setter for xgboost parameters is currently implemented.
|
|
}
|
|
\details{
|
|
Note that the setter would usually work more efficiently for \code{xgb.Booster.handle}
|
|
than for \code{xgb.Booster}, since only just a handle would need to be copied.
|
|
}
|
|
\examples{
|
|
data(agaricus.train, package='xgboost')
|
|
train <- agaricus.train
|
|
|
|
bst <- xgboost(data = train$data, label = train$label, max_depth = 2,
|
|
eta = 1, nthread = 2, nrounds = 2, objective = "binary:logistic")
|
|
|
|
xgb.parameters(bst) <- list(eta = 0.1)
|
|
|
|
}
|