c66ca79221
* [R] add native routines registration * c_api.h needs to include <cstdint> since it uses fixed width integer types * [R] use registered native routines from R code * [R] bump version; add info on native routine registration to the contributors guide * make lint happy
24 lines
708 B
R
24 lines
708 B
R
#' Save xgb.DMatrix object to binary file
|
|
#'
|
|
#' Save xgb.DMatrix object to binary file
|
|
#'
|
|
#' @param dmatrix the \code{xgb.DMatrix} object
|
|
#' @param fname the name of the file to write.
|
|
#'
|
|
#' @examples
|
|
#' data(agaricus.train, package='xgboost')
|
|
#' train <- agaricus.train
|
|
#' dtrain <- xgb.DMatrix(train$data, label=train$label)
|
|
#' xgb.DMatrix.save(dtrain, 'xgb.DMatrix.data')
|
|
#' dtrain <- xgb.DMatrix('xgb.DMatrix.data')
|
|
#' @export
|
|
xgb.DMatrix.save <- function(dmatrix, fname) {
|
|
if (typeof(fname) != "character")
|
|
stop("fname must be character")
|
|
if (!inherits(dmatrix, "xgb.DMatrix"))
|
|
stop("dmatrix must be xgb.DMatrix")
|
|
|
|
.Call(XGDMatrixSaveBinary_R, dmatrix, fname[1], 0L)
|
|
return(TRUE)
|
|
}
|