Save xgb.DMatrix object to binary file

Save xgb.DMatrix object to binary file

Usage

xgb.DMatrix.save(dmatrix, fname)

Arguments

dmatrix

the xgb.DMatrix object

fname

the name of the file to write.

Examples

#> Error in loadNamespace(x): there is no package called ‘RhpcBLASctl’
data(agaricus.train, package = "xgboost")

dtrain <- with(agaricus.train, xgb.DMatrix(data, label = label, nthread = 2))
fname <- file.path(tempdir(), "xgb.DMatrix.data")
xgb.DMatrix.save(dtrain, fname)
#> [1] TRUE
dtrain <- xgb.DMatrix(fname, nthread = 1)