The option ‘Leap year’ cannot be used separately, without using ‘trading days’. In some series only leap year is significant, and we adjust for this single effect. In some applications we may want to know the effect of leap year, separate from the TD.
It makes sense for quarterly series (probably not for monthly series). It will be added with the new regression variables model. Workload: 3 days (checking for side effects)
The option ‘Leap year’ cannot be used separately, without using ‘trading days’. In some series only leap year is significant, and we adjust for this single effect. In some applications we may want to know the effect of leap year, separate from the TD.