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Test whether a string is a valid date

Source: R/is_valid_date_str.R
is_valid_date_str.Rd

Taken from github.com/rmsharp/rmsutilityr

Usage

is_valid_date_str(
  date_str,
  format = "%d-%m-%Y %H:%M:%S",
  optional = FALSE
)

Arguments

date_str

character vector with 0 or more dates

format

character vector of length one. Retained for backward compatibility; the current implementation validates dates with anytime() and does not use format.

optional

logical value indicating that NA should be returned instead of FALSE for strings that are not valid dates. Defaults to FALSE.

Value

A logical value or NA indicating whether or not the provided character vector represented a valid date string.

Examples

is_valid_date_str(c(
  "13-21-1995", "20-13-98", "5-28-1014",
  "1-21-15", "2-13-2098", "25-28-2014"
), format = "%m-%d-%y")
#> [1] FALSE FALSE  TRUE  TRUE  TRUE FALSE