Allow character grouping columns in factor smooths - #293

Draft

stemangiola with Copilot wants to merge 6 commits into

copilot/fix-smooth-grouping-issue

Commits on Aug 7, 2026

Initial plan
Copilot
authored
27adc38
Support character factor-smooth grouping

Copilot
and
stemangiola
authored
7e9f951
Clean smooth grouping test formatting

Copilot
and
stemangiola
authored
3151b7f
Handle factor smooth grouping terms robustly

Copilot
and
stemangiola
authored
5582272
Avoid unnecessary smooth data copies

Copilot
and
stemangiola
authored
f9d5a01
Preserve smooth data frame input handling

Copilot
and
stemangiola
authored
4664155