Maintainer: ‘Jonas Peters <jonas.peters@math.ku.dk>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Jonas",
                      family = "Peters",
                      role = c("aut", "cre"),
                      email = "jonas.peters@math.ku.dk"),
               person(given = c("Rajen", "D."),
                      family = "Shah",
                      role = "aut"))
as necessary.
train.xgboost: no visible global function definition for
  ‘cb.evaluation.log’
Undefined global functions or variables:
  cb.evaluation.log
Maintainer: ‘Jonas Peters <jonas.peters@math.ku.dk>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Jonas",
                      family = "Peters",
                      role = c("aut", "cre"),
                      email = "jonas.peters@math.ku.dk"),
               person(given = c("Rajen", "D."),
                      family = "Shah",
                      role = "aut"))
as necessary.
train.xgboost: no visible global function definition for
  ‘cb.evaluation.log’
Undefined global functions or variables:
  cb.evaluation.log
train.xgboost: no visible global function definition for
  ‘cb.evaluation.log’
Undefined global functions or variables:
  cb.evaluation.log
train.xgboost: no visible global function definition for
  ‘cb.evaluation.log’
Undefined global functions or variables:
  cb.evaluation.log
train.xgboost: no visible global function definition for
  'cb.evaluation.log'
Undefined global functions or variables:
  cb.evaluation.log
train.xgboost: no visible global function definition for
  ‘cb.evaluation.log’
Undefined global functions or variables:
  cb.evaluation.log
train.xgboost: no visible global function definition for
  ‘cb.evaluation.log’
Undefined global functions or variables:
  cb.evaluation.log
train.xgboost: no visible global function definition for
  'cb.evaluation.log'
Undefined global functions or variables:
  cb.evaluation.log