27 lines
789 B
R
27 lines
789 B
R
#' Save xgb.DMatrix object to binary file
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#'
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#' Save xgb.DMatrix object to binary file
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#'
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#' @param model the model object.
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#' @param fname the name of the binary file.
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#'
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#' @examples
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#' data(iris)
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#' iris[,5] <- as.numeric(iris[,5])
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#' dtrain <- xgb.DMatrix(as.matrix(iris[,1:4]), label=iris[,5])
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#' xgb.DMatrix.save(dtrain, 'iris.xgb.DMatrix')
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#' dtrain <- xgb.DMatrix('iris.xgb.DMatrix')
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#'
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xgb.DMatrix.save <- function(DMatrix, fname) {
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if (typeof(fname) != "character") {
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stop("xgb.save: fname must be character")
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}
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if (class(DMatrix) == "xgb.DMatrix") {
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.Call("XGDMatrixSaveBinary_R", DMatrix, fname, as.integer(FALSE),
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PACKAGE = "xgboost")
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return(TRUE)
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}
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stop("xgb.save: the input must be either xgb.DMatrix or xgb.Booster")
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return(FALSE)
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}
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