DOC: Add documentation for groupby.expanding()
#48208
| Job | Run time |
|---|---|
| 20m 13s | |
| 2m 39s | |
| 17m 7s | |
| 1m 43s | |
| 41m 42s |
groupby.expanding()
#48208
| Job | Run time |
|---|---|
| 20m 13s | |
| 2m 39s | |
| 17m 7s | |
| 1m 43s | |
| 41m 42s |