Save xgb.DMatrix object to binary file

Save xgb.DMatrix object to binary file

xgb.DMatrix.save(dmatrix, fname)

Arguments

dmatrix	the xgb.DMatrix object
fname	the name of the file to write.

Examples

data(agaricus.train, package='xgboost')
train <- agaricus.train
dtrain <- xgb.DMatrix(train$data, label=train$label)
xgb.DMatrix.save(dtrain, 'xgb.DMatrix.data')
#> [1] TRUE
dtrain <- xgb.DMatrix('xgb.DMatrix.data')
#> [11:52:55] 6513x126 matrix with 143286 entries loaded from xgb.DMatrix.data
if (file.exists('xgb.DMatrix.data')) file.remove('xgb.DMatrix.data')
#> [1] TRUE