xgb.save.raw {xgboost}

Save xgboost model to R's raw vector, user can call xgb.load.raw to load the model back from raw vector

Description

Save xgboost model from xgboost or xgb.train

Usage

xgb.save.raw(model, raw_format = "deprecated")

Arguments

model

the model object.

raw_format

The format for encoding the booster. Available options are

• json: Encode the booster into JSON text document.

• ubj: Encode the booster into Universal Binary JSON.

• deprecated: Encode the booster into old customized binary format.

Right now the default is deprecated but will be changed to ubj in upcoming release.

Examples

data(agaricus.train, package='xgboost')
data(agaricus.test, package='xgboost')

## Keep the number of threads to 2 for examples
nthread <- 2
data.table::setDTthreads(nthread)

train <- agaricus.train
test <- agaricus.test
bst <- xgboost(data = train$data, label = train$label, max_depth = 2,
               eta = 1, nthread = nthread, nrounds = 2,objective = "binary:logistic")

raw <- xgb.save.raw(bst)
bst <- xgb.load.raw(raw)