Watch for duplicate keys after vertical concat
watch-for-duplicate-keys-after-vertical-concat · always_apply: no
Content
Concatenating vertically preserves every source index, which can create duplicate index labels — resolve via a hierarchical keys= param or drop_duplicates().
Details
- Slug:
watch-for-duplicate-keys-after-vertical-concat- Always apply:
- No
- Created:
- Sep 18, 2026
- Updated:
- Sep 18, 2026
Playbook
Activities 1
- Combine and deduplicate datasets Organize and Clean Data