27 lines
956 B
R
27 lines
956 B
R
#' Save xgboost model to text file
|
|
#'
|
|
#' Save a xgboost model to text file. Could be parsed later.
|
|
#'
|
|
#' @param model the model object.
|
|
#' @param fname the name of the binary file.
|
|
#' @param fmap feature map file representing the type of feature, to make it
|
|
#' look nice, run inst/examples/demo.R for result and inst/examples/featmap.txt for example
|
|
#' Format: https://github.com/tqchen/xgboost/wiki/Binary-Classification#dump-model
|
|
#'
|
|
#' @examples
|
|
#' data(iris)
|
|
#' bst <- xgboost(as.matrix(iris[,1:4]),as.numeric(iris[,5]), nrounds = 2)
|
|
#' xgb.dump(bst, 'iris.xgb.model.dump')
|
|
#' @export
|
|
#'
|
|
xgb.dump <- function(model, fname, fmap = "") {
|
|
if (class(model) != "xgb.Booster") {
|
|
stop("xgb.dump: first argument must be type xgb.Booster")
|
|
}
|
|
if (typeof(fname) != "character") {
|
|
stop("xgb.dump: second argument must be type character")
|
|
}
|
|
.Call("XGBoosterDumpModel_R", model, fname, fmap, PACKAGE = "xgboost")
|
|
return(TRUE)
|
|
}
|