is_date_proper {amadeus} | R Documentation |
Check date input strings conform to the required format.
is_date_proper(instr = NULL, format = "%Y-%m-%d")
instr |
character(1). String to check. |
format |
character(1). Matching format to be checked.
Default is |
No returning value. It stops the function if instr
doesn't
conform to the format
.
Insang Song