25 lines
823 B
R
25 lines
823 B
R
% Generated by roxygen2: do not edit by hand
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% Please edit documentation in R/callbacks.R
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\name{xgb.cb.evaluation.log}
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\alias{xgb.cb.evaluation.log}
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\title{Callback for logging the evaluation history}
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\usage{
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xgb.cb.evaluation.log()
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}
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\value{
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An \code{xgb.Callback} object, which can be passed to \code{\link[=xgb.train]{xgb.train()}} or \code{\link[=xgb.cv]{xgb.cv()}}.
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}
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\description{
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Callback for logging the evaluation history
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}
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\details{
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This callback creates a table with per-iteration evaluation metrics (see parameters
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\code{evals} and \code{feval} in \code{\link[=xgb.train]{xgb.train()}}).
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Note: in the column names of the final data.table, the dash '-' character is replaced with
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the underscore '_' in order to make the column names more like regular R identifiers.
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}
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\seealso{
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\link{xgb.cb.print.evaluation}
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}
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