Save xgb.DMatrix object to binary file — xgb.DMatrix.save • xgboost

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

DONTSHOW({RhpcBLASctl::omp_set_num_threads(1)})
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)
dtrain <- xgb.DMatrix(fname, nthread = 1)