Skip to contents

Remove dates before a specified year

Source: R/removeEarlyDates.R
removeEarlyDates.Rd

Dates before a specified year are set to NA. This is often used for dates formed from malformed character representations such as a date in %m-%d-%Y format being read by %Y-%m-%d format

Usage

removeEarlyDates(dates, firstYear)

Arguments

dates

vector of dates

firstYear

integer value of first (earliest) year in the allowed date range.

Value

A vector of dates with every date before the year indicated by the numeric value of firstYear set to NA. Dates in firstYear itself are kept.

Details

NA values are ignored and not changed.

Examples

dates <- structure(c(
  12361, 14400, 15413, NA, 11189, NA, 13224, 10971,
  -432000, 13262
), class = "Date")
cleanedDates <- removeEarlyDates(dates, firstYear = 1000)
dates
#>  [1] "2003-11-05" "2009-06-05" "2012-03-14" NA           "2000-08-20"
#>  [6] NA           "2006-03-17" "2000-01-15" "787-03-24"  "2006-04-24"
cleanedDates
#>  [1] "2003-11-05" "2009-06-05" "2012-03-14" NA           "2000-08-20"
#>  [6] NA           "2006-03-17" "2000-01-15" NA           "2006-04-24"