28 lines
799 B
R
28 lines
799 B
R
#' Save xgb.DMatrix object to binary file
|
|
#'
|
|
#' Save xgb.DMatrix object to binary file
|
|
#'
|
|
#' @param DMatrix the DMatrix object
|
|
#' @param fname the name of the binary file.
|
|
#'
|
|
#' @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("xgb.save: fname must be character")
|
|
}
|
|
if (class(DMatrix) == "xgb.DMatrix") {
|
|
.Call("XGDMatrixSaveBinary_R", DMatrix, fname, as.integer(FALSE),
|
|
PACKAGE = "xgboost")
|
|
return(TRUE)
|
|
}
|
|
stop("xgb.DMatrix.save: the input must be xgb.DMatrix")
|
|
return(FALSE)
|
|
}
|