Add "AUCPR" to AutoML leaderboard, stopping_metric and sort_metric

[exalate-issue-sync]

We should add a new column to the binary classification leaderboard, "aucpr". The stopping_metric and sort_metric option should be "AUCPR" (with support for lowercase on the backend).

Updates should also be made to the automl.rst user guide file to reflect the changes.

[exalate-issue-sync]

Sebastien Poirier commented: [~accountid:557058:afd6e9a4-1891-4845-98ea-b5d34a2bc42c] any wish for the default position of {{aucpr}} in the leaderboard (meaning, when it’s not used as a sort metric).
Current default columns are in this order:
{{{"auc", "logloss", "mean_per_class_error", "rmse", "mse"}}}

After logloss?

[exalate-issue-sync]

Sebastien Poirier commented: [~accountid:557058:afd6e9a4-1891-4845-98ea-b5d34a2bc42c] Also for regression, leaderboard default sorting metric for regression is {{mean_residual_deviance}} (a.k.a {{residual_deviance}} in GLM, a.k.a {{deviance}} when used as metric input name: [http://docs.h2o.ai/h2o/latest-stable/h2o-docs/data-science/algo-params/stopping_metric.html|http://docs.h2o.ai/h2o/latest-stable/h2o-docs/data-science/algo-params/stopping_metric.html]).
I suggest to also display it as {{deviance}} in leaderboard. OK with this?

[exalate-issue-sync]

Erin LeDell commented: [~accountid:5b153fb1b0d76456f36daced] I added my comments on the deviance topic on the PR.

[h2o-ops]

JIRA Issue Migration Info

Jira Issue: PUBDEV-7072
Assignee: Sebastien Poirier
Reporter: Erin LeDell
State: Closed
Fix Version: 3.28.0.1
Attachments: N/A
Development PRs: Available

Linked PRs from JIRA

#4089
#4152