Create a dt_level object
Arguments
- level
Date level
Permitted Values:
"Y"(year, highest level),"M"(month),"D"(day),"n"(none, lowest level)
See also
Utilities used for date imputation:
dtm_level(),
get_imputation_target_date(),
get_imputation_target_time(),
get_partialdatetime(),
restrict_imputed_dtc_dtm(),
restrict_imputed_dtc_dt()
