slice

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Percentile

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

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

Usage
slice(object, ...)

## S3 method for class 'xgb.DMatrix': slice(object, idxset, ...)

Arguments
object
Object of class "xgb.DMatrix"
idxset
a integer vector of indices of rows needed
...
other parameters
Aliases
  • slice
  • slice,xgb.DMatrix-method
Examples
data(agaricus.train, package='xgboost')
train <- agaricus.train
dtrain <- xgb.DMatrix(train$data, label=train$label)
dsub <- slice(dtrain, 1:3)
Documentation reproduced from package xgboost, version 0.3-2, License: Apache License (== 2.0) | file LICENSE

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