epiweekToDate:
Convert Epidemiological Weeks to Calendar Dates
Description
This function returns the beginning and end dates for a given epidemiological week. By definition, the first epidemiological week of the year contains at least four days in January.
Usage
epiweekToDate(year, weekno, firstday = "Sunday")
Arguments
year
A four digits numerical value for the epidemiological year
weekno
A two digits numerical value for the epidemiological week
firstday
A character string specifying the beginning weekday for each epidemiological week. The default for the firstday methods is "Sunday".