Description Usage Arguments See Also
This is intended to be called from data_check_standard
for checkiing date variables. It returns a vector of dates in a "yyyy-mm-dd"
format.
1 2 3 4 5 6  | 
year1 | 
 first allowed year  | 
valid_years | 
 set of allowed years  | 
valid_months | 
 set of allowed months  | 
valid_days | 
 set of allwed days  | 
Other functions to check data format: 
data_check_standard()
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