[SPARK-31768] add getMetrics in Evaluators

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.1.0
• Fix Version/s: 3.1.0
• Component/s: ML
• Assignee: Huaxin Gao
• Reporter: Huaxin Gao
• Created: 20/May/20 04:23
• Updated: 26/Jan/21 02:03
• Resolved: 24/May/20 13:43

Description

add getMetrics in Evaluators to get the corresponding Metrics instance, so user can use it to get all the metrics scores.

Issue Links

• links to: [Github] Pull Request #28590 (huaxingao)
• links to: [Github] Pull Request #28590 (huaxingao)
• links to: [Github] Pull Request #31334 (zhengruifeng)
• links to: [Github] Pull Request #31334 (zhengruifeng)