A. Coady created ARROW-15736: -------------------------------- Summary: [C++] Aggregate functions for min and max index. Key: ARROW-15736 URL: https://issues.apache.org/jira/browse/ARROW-15736 Project: Apache Arrow Issue Type: New Feature Components: C++ Reporter: A. Coady
Numpy and Pandas both have `argmin` and `argmax`, for the common use case of finding values in parallel arrays which correspond to min or max values. Proposals: * `min_max_index` for arrays * `hash_min_max_index` for aggregations * some ability to break ties: ** `min_max_index` for tables with multiple sort keys, similar to `sort_indices` ** `min_max_indices` for arrays to match all equal values -- This message was sent by Atlassian Jira (v8.20.1#820001)