xgb.DMatrix {xgboost} | R Documentation |
Contruct xgb.DMatrix object from dense matrix, sparse matrix
or local file (that was created previously by saving an xgb.DMatrix
).
xgb.DMatrix(data, info = list(), missing = NA, ...)
data |
a |
info |
a list of information of the xgb.DMatrix object |
missing |
Missing is only used when input is dense matrix, pick a float value that represents missing value. Sometime a data use 0 or other extreme value to represents missing values. |
... |
other information to pass to |
data(agaricus.train, package='xgboost') train <- agaricus.train dtrain <- xgb.DMatrix(train$data, label=train$label) xgb.DMatrix.save(dtrain, 'xgb.DMatrix.data') dtrain <- xgb.DMatrix('xgb.DMatrix.data')