xgb.DMatrix

From xgboost v0.3-1 by Tong He

Contruct xgb.DMatrix object

Contruct xgb.DMatrix object from dense matrix, sparse matrix or local file.

Usage

xgb.DMatrix(data, info = list(), missing = 0, ...)

Arguments

data: a matrix object, a dgCMatrix object or a character indicating the data file.
info: a list of information of the xgb.DMatrix object
missing: Missing is only used when input is dense matrix, pick a float
...: other information to pass to info.

Examples

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')

Documentation reproduced from package xgboost, version 0.3-1, License: Apache License (== 2.0) | file LICENSE

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