map() is not vectorized
map-is-not-vectorized · always_apply: no
Content
Functions passed to Series.map() run in the Python interpreter rather than being optimized like ufuncs — use it only when no vectorized alternative exists.
Details
- Slug:
map-is-not-vectorized- Always apply:
- No
- Created:
- Sep 18, 2026
- Updated:
- Sep 18, 2026
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