xgboost/R-package/R/setinfo.xgb.DMatrix.R
2014-09-06 11:17:38 -07:00

30 lines
869 B
R

#' Set information of an xgb.DMatrix object
#'
#' 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))
#' @rdname setinfo
#' @export
#'
setinfo <- function(object, ...){
UseMethod("setinfo")
}
#' @param object Object of class "xgb.DMatrix"
#' @param name the name of the field to get
#' @param info the specific field of information to set
#' @param ... other parameters
#' @rdname setinfo
#' @method setinfo xgb.DMatrix
setMethod("setinfo", signature = "xgb.DMatrix",
definition = function(object, name, info) {
xgb.setinfo(object, name, info)
})