Easter holidays in each season
Returns a vector of 0's and 1's or fractional results if Easter
spans March and April in the observed time period. Easter is defined as the days from Good Friday to Easter Sunday inclusively, plus optionally Easter Monday if
easter(x, easter.mon = FALSE)
- Monthly or quarterly time series
- If TRUE, the length of Easter holidays includes Easter Monday.
Useful for adjusting calendar effects.
easter(wineind, easter.mon = TRUE)