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[Breaking] Change default evaluation metric for classification to logloss / mlogloss (#6183)

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* Change DefaultEvalMetric of classification from error to logloss

* Change default binary metric in plugin/example/custom_obj.cc

* Set old error metric in python tests

* Set old error metric in R tests

* Fix missed eval metrics and typos in R tests

* Fix setting eval_metric twice in R tests

* Add warning for empty eval_metric for classification

* Fix Dask tests

Co-authored-by: Hyunsu Cho <chohyu01@cs.washington.edu>
This commit is contained in:
Christian Lorentzen
2020-10-02 21:06:47 +02:00
committed by GitHub
parent e0e4f15d0e
commit cf4f019ed6
18 changed files with 56 additions and 32 deletions
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src/objective/regression_loss.h
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@@ -131,7 +131,7 @@ struct PseudoHuberError {
// logistic loss for binary classification task
struct LogisticClassification : public LogisticRegression {
static const char* DefaultEvalMetric() { return "error"; }
static const char* DefaultEvalMetric() { return "logloss"; }
static const char* Name() { return "binary:logistic"; }
};