fixed typos in R package docs (#4345)
* fixed typos in R package docs * updated verbosity parameter in xgb.train docs
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@@ -8,15 +8,15 @@ cb.early.stop(stopping_rounds, maximize = FALSE, metric_name = NULL,
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verbose = TRUE)
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}
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\arguments{
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\item{stopping_rounds}{The number of rounds with no improvement in
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\item{stopping_rounds}{The number of rounds with no improvement in
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the evaluation metric in order to stop the training.}
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\item{maximize}{whether to maximize the evaluation metric}
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\item{metric_name}{the name of an evaluation column to use as a criteria for early
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stopping. If not set, the last column would be used.
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Let's say the test data in \code{watchlist} was labelled as \code{dtest},
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and one wants to use the AUC in test data for early stopping regardless of where
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Let's say the test data in \code{watchlist} was labelled as \code{dtest},
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and one wants to use the AUC in test data for early stopping regardless of where
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it is in the \code{watchlist}, then one of the following would need to be set:
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\code{metric_name='dtest-auc'} or \code{metric_name='dtest_auc'}.
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All dash '-' characters in metric names are considered equivalent to '_'.}
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@@ -27,7 +27,7 @@ All dash '-' characters in metric names are considered equivalent to '_'.}
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Callback closure to activate the early stopping.
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}
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\details{
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This callback function determines the condition for early stopping
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This callback function determines the condition for early stopping
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by setting the \code{stop_condition = TRUE} flag in its calling frame.
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The following additional fields are assigned to the model's R object:
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