| declared-package | Functions to Declare Missing Values |
| as_declared | Labelled vectors with declared missing values |
| as_haven | Labelled vectors with declared missing values |
| declared | Labelled vectors with declared missing values |
| frtable | Create a frequency table |
| is_declared | Labelled vectors with declared missing values |
| missing_range | Get / Declare missing values |
| missing_range<- | Get / Declare missing values |
| missing_values | Get / Declare missing values |
| missing_values<- | Get / Declare missing values |
| undeclare | Labelled vectors with declared missing values |
| value_labels | Get / Declare missing values |
| value_labels<- | Get / Declare missing values |
| variable_label | Get / Declare missing values |
| variable_label<- | Get / Declare missing values |