haystack/releasenotes/notes/add-metadata-field-ranker-a8afd5bf15f29a0a.yaml

---
preview:
  - |
    Adds MetaFieldRanker, a component that ranks a list of Documents based on the value of a metadata field of choice.
feat: MetaField Ranker (#6189) * proposal: meta field ranker * Apply suggestions from code review Co-authored-by: ZanSara <sarazanzo94@gmail.com> * update proposal filename * feat: add metafield ranker * fix docstrings * remove proposal file from pr * add release notes * update code according to new Document class * separate loops for each ranking mode in __merge_scores * change error type in init and new tests for linear score warning * docstring upd --------- Co-authored-by: ZanSara <sarazanzo94@gmail.com> Co-authored-by: Daria Fokina <daria.fokina@deepset.ai> 2023-11-09 12:20:41 +01:00			`---`
			`preview:`
			`- \|`
			`Adds MetaFieldRanker, a component that ranks a list of Documents based on the value of a metadata field of choice.`