DateOffset increments between business quarter dates
for 52-53 week fiscal year (also known as a 4-4-5 calendar).
It is used by companies that desire that their
fiscal year always end on the same day of the week.
It is a method of managing accounting periods.
It is a common calendar structure for some industries,
such as retail, manufacturing and parking industry.
For more information see:
The year may either:
end on the last X day of the Y month.
end on the last X day closest to the last day of the Y month.
X is a specific day of the week.
Y is a certain month of the year
startingMonth = 1 corresponds to dates like 1/31/2007, 4/30/2007, …
startingMonth = 2 corresponds to dates like 2/28/2007, 5/31/2007, …
startingMonth = 3 corresponds to dates like 3/30/2007, 6/29/2007, …
A specific integer for the day of the week.
0 is Monday
1 is Tuesday
2 is Wednesday
3 is Thursday
4 is Friday
5 is Saturday
6 is Sunday.
The month in which fiscal years end.
The quarter number that has the leap or 14 week when needed.
Method of employing 4-4-5 calendar.
There are two options:
“nearest” means year end is weekday closest to last day of month in year.
“last” means year end is final weekday of the final month in fiscal year.
Returns a copy of the calling offset object with n=1 and all other attributes equal.
Vectorized apply of DateOffset to DatetimeIndex, raises NotImplentedError for offsets without a vectorized implementation.
Roll provided date backward to next offset only if not on offset.
Roll provided date forward to next offset only if not on offset.