Man pages for BAAQMD/yeartools
Provides CY, RY, PY, and BY classes and methods
| elide_year | elide_year |
| expand_years | expand_years |
| gather_years | gather_years |
| ndays_in | Number of days in a year, including leap days |
| new_YYYY | new_YYYY |
| parse_year | parse_year |
| spread_years | spread_years |
| timeline | timeline |
| unpack_years | unpack_years |
| YYYY | Typically we should call 'YYYY()' rather than 'new_YYYY()'. |
