setinfo

0th

Percentile

Set information of an xgb.DMatrix object

Set information of an xgb.DMatrix object

Usage
setinfo(object, ...)

# S3 method for xgb.DMatrix setinfo(object, name, info, ...)

Arguments
object

Object of class "xgb.DMatrix"

...

other parameters

name

the name of the field to get

info

the specific field of information to set

Details

The name field can be one of the following:

  • label: label Xgboost learn from ;

  • weight: to do a weight rescale ;

  • base_margin: base margin is the base prediction Xgboost will boost from ;

  • group.

Aliases
  • setinfo
  • setinfo.xgb.DMatrix
Examples
# NOT RUN {
data(agaricus.train, package='xgboost')
train <- agaricus.train
dtrain <- xgb.DMatrix(train$data, label=train$label)

labels <- getinfo(dtrain, 'label')
setinfo(dtrain, 'label', 1-labels)
labels2 <- getinfo(dtrain, 'label')
stopifnot(all.equal(labels2, 1-labels))
# }
Documentation reproduced from package xgboost, version 0.6-4, License: Apache License (== 2.0) | file LICENSE

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