The age_adjust() function drops cases with the value "Unknown" for the variable age_group since calculating age-adjusted rates requires a numeric age group. The outputted n would not include the dropped cases. Displaying a warning message when cases are dropped would be helpful.
The age_adjust() function drops cases with the value "Unknown" for the variable age_group since calculating age-adjusted rates requires a numeric age group. The outputted n would not include the dropped cases. Displaying a warning message when cases are dropped would be helpful.