Calculate yearly breaks for dates

This function calculates yearly breaks for a given range of dates.

Usage

calc_year_breaks(dates)

Arguments

dates

A vector of dates, or something coercible with base::as.Date

Value

A vector of dates representing the start of each year within the range of dates.

Details

These breaks are floor dates for the year, so min(dates) >= min(calc_year_breaks(dates)) and max(dates) <= max(calc_yearr_breaks(dates)).