2023-07-15
Add data: hogwarts
which includes timetable in
Hogwarts School of Witchcraft and Wizardry.
Fix bug in split_force()
.
2023-06-15
First release
pivot()
and related functions:
add_group_sub()
, validate_col()
and
split_force()
omit_na_row()
,
has_col()
, omit_na_col()
,
extract_col()
, and na2empty()