micstr

# Trying to find a basic test for dates in R. was looking for a is.Date like as.Date vibe

IsDate <- function(mydate, date.format = "%d/%m/%y") {
  # Check if field is a date using as.Date that looks for unambiguous dates
  #   Assumes date format so NA returned not Character error. 
  #   Why? with no date format, R tries two defaults then gives error. 
  #   BUT With a dateformat R returns NA
  # Args
  #   Suspected date and optional date format string
  # Returns