| academic_year | Academic year |
| clean_multiple_underscores | clean multiple underscores |
| destring | Convert character vector to numeric, ignoring irrelevant characters. |
| group_summary | Group Summary |
| group_summary_rank | Group Summary Rank |
| interval_round | Interval round |
| ltrim | LTrim |
| median_top_10 | Median top 10 percentage |
| mode | Mode (most common value) |
| month_name | Month Name |
| rtrim | RTrim |
| str_replace_all_in_file | Replace all occurences of a pattern in a file |
| sum_0_1 | Sum 0 1 |
| test_01 | Test 01 |
| test_yes_no | Test Yes/No Responses |
| transform_01_to_ft | Transform 01 to FT |
| transform_logical_yes_no | Transform Logical to Yes/No and Vice Versa |
| translate_yes_no | Translate Yes/No Responses |
| trim | Trim |