R example for xgb.train throws warning

[david-cortes]

When running the R example from xgb.train in the current master branch, I get the following warning:

[<time>] WARNING: amalgamation/../src/learner.cc:576: 
Parameters: { "verbose" } might not be used.

  This may not be accurate due to some parameters are only used in language bindings but
  passed down to XGBoost core.  Or some parameters are not used but slip through this
  verification. Please open an issue if you find above cases.

Code as given in the example:

data(agaricus.train, package='xgboost')
data(agaricus.test, package='xgboost')

dtrain <- with(agaricus.train, xgb.DMatrix(data, label = label))
dtest <- with(agaricus.test, xgb.DMatrix(data, label = label))
watchlist <- list(train = dtrain, eval = dtest)

## A simple xgb.train example:
param <- list(max_depth = 2, eta = 1, verbose = 0, nthread = 2,
              objective = "binary:logistic", eval_metric = "auc")
bst <- xgb.train(param, dtrain, nrounds = 2, watchlist)

[trivialfis]

Let me take a look. Thanks for opening the issue.

[trivialfis]

I need to deprecate the verbose parameter in the next release and unify it with the verbosity that's used by other bindings.

[kushknows]

Same warning I am getting in Python also. I tried some methods but none of them work. Please resolve this issue

[trivialfis]

Fixed by #9942 .