Return the month number that would occur n months before the integer in `month`
Usage
previous_n_months(month, n = 1)
Arguments
- month
- an integer month number
- n
- the number of months to subtract from current month (default = 1)
Value
the nth previous month number as in integer
Examples
previous_n_months(9, 2)
#> [1] 7
previous_n_months(1, 1)
#> [1] 12