This function checks the validity of the landing_date in the provided dataset.
If the landing_date is before 1990-01-01, an alert (error label) with the number 1 is triggered.
The landing_date is then set to NA for those records.
Usage
validate_dates(data = NULL, flag_value = NULL)
Arguments
- data
A data frame containing the landing_date column.
- flag_value
A numeric value to use as the flag for catches exceeding the upper bound.
Value
A data frame with two columns: landing_date and alert_date.
landing_date: The original date if valid, otherwise NA.
alert_date: A numeric value indicating the alert (error label) number, where 1 represents an invalid date.
Examples
if (FALSE) { # \dontrun{
validate_dates(data, flag_value = 1)
} # }
