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xgboost (version 0.3-3)

eXtreme Gradient Boosting

Description

Xgboost is short for eXtreme Gradient Boosting, which is an efficient and scalable implementation of gradient boosting framework. This package is an R wrapper of xgboost. The package includes efficient linear model solver and tree learning algorithms. The package can automatically do parallel computation with OpenMP, and it can be more than 10 times faster than existing gradient boosting packages such as gbm. It supports various objective functions, including regression, classification and ranking. The package is made to be extensible, so that users are also allowed to define their own objectives easily.

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Install

install.packages('xgboost')

Monthly Downloads

54,777

Version

0.3-3

License

Apache License (== 2.0) | file LICENSE

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Maintainer

Tong He

Last Published

March 3rd, 2015

Functions in xgboost (0.3-3)

getinfo

Get information of an xgb.DMatrix object
xgb.save.raw

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

Training part from Mushroom Data Set
xgb.dump

Save xgboost model to text file
slice

Get a new DMatrix containing the specified rows of orginal xgb.DMatrix object
xgb.plot.importance

Plot feature importance bar graph
xgb.cv

Cross Validation
predict,xgb.Booster.handle-method

Predict method for eXtreme Gradient Boosting model handle
xgb.train

eXtreme Gradient Boosting Training
xgb.plot.tree

Plot a boosted tree model
xgb.load

Load xgboost model from binary file
xgb.model.dt.tree

Convert tree model dump to data.table
predict,xgb.Booster-method

Predict method for eXtreme Gradient Boosting model
setinfo

Set information of an xgb.DMatrix object
agaricus.test

Test part from Mushroom Data Set
xgb.DMatrix

Contruct xgb.DMatrix object
xgboost

eXtreme Gradient Boosting (Tree) library
xgb.save

Save xgboost model to binary file
xgb.DMatrix.save

Save xgb.DMatrix object to binary file
xgb.importance

Show importance of features in a model