| %notin% | Negated Value Matching |
| %or% | Or |
| add_suffix_to_vars | Add a Suffix to Variables in a List of Expressions |
| anti_join | Join Functions |
| arg_name | Extract Argument Name from an Expression |
| assert_atomic_vector | Is an Argument an Atomic Vector? |
| assert_character_scalar | Is an Argument a Character Scalar (String)? |
| assert_character_vector | Is an Argument a Character Vector? |
| assert_data_frame | Is an Argument a Data Frame? |
| assert_date_var | Is a Variable in a Dataset a Date or Datetime Variable? |
| assert_date_vector | Is an object a date or datetime vector? |
| assert_expr | Assert Argument is an Expression |
| assert_expr_list | Is an Argument a List of Expressions? |
| assert_filter_cond | Is an Argument a Filter Condition? |
| assert_function | Is Argument a Function? |
| assert_integer_scalar | Is an Argument an Integer Scalar? |
| assert_list_element | Is an Element of a List of Lists/Classes Fulfilling a Condition? |
| assert_list_of | Is an Argument a List of Objects of a Specific S3 Class or Type? |
| assert_logical_scalar | Is an Argument a Logical Scalar (Boolean)? |
| assert_named | Assert Argument is a Named List or Vector |
| assert_numeric_vector | Is an Argument a Numeric Vector? |
| assert_one_to_one | Is There a One to One Mapping between Variables? |
| assert_param_does_not_exist | Asserts That a Parameter Does Not Exist in the Dataset |
| assert_s3_class | Is an Argument an Object of a Specific S3 Class? |
| assert_same_type | Are All Argument of the Same Type? |
| assert_symbol | Is an Argument a Symbol? |
| assert_unit | Asserts That a Parameter is Provided in the Expected Unit |
| assert_vars | Is an Argument a List of Variables? |
| assert_varval_list | Is an Argument a Variable-Value List? |
| backquote | Wrap a String in Backquotes |
| contains_vars | check that argument contains valid variable(s) created with 'exprs()' or Source Variables from a List of Expressions |
| convert_dtm_to_dtc | Helper Function to Convert Date (or Date-time) Objects to Characters of dtc Format (-DTC type of variable) |
| dataset_vignette | Output a Dataset in a Vignette in the admiral Format |
| deprecate_inform | Deprecation with Soft Message |
| dquote | Wrap a String in Double Quotes |
| enumerate | Enumerate Multiple Elements |
| expect_dfs_equal | Expectation: Are Two Datasets Equal? |
| expr_c | Concatenate One or More Expressions |
| extract_vars | Extract All Symbols from a List of Expressions |
| filter_if | Optional Filter |
| friendly_type_of | Return English-friendly messaging for object-types |
| get_constant_vars | Get Constant Variables |
| get_dataset | Retrieve a Dataset from the 'admiraldev_environment' environment |
| get_duplicates | Get Duplicates From a Vector |
| get_new_tmp_var | Get a New Temporary Variable Name for a Dataset |
| get_source_vars | Get Source Variables from a List of Expressions |
| inner_join | Join Functions |
| is_auto | Checks if the argument equals the auto keyword |
| is_order_vars | Is order vars? |
| is_valid_dtc | Is this string a valid DTC |
| left_join | Join Functions |
| process_set_values_to | Process 'set_values_to' Argument |
| remove_tmp_vars | Remove All Temporary Variables Created Within the Current Function Environment |
| replace_symbol_in_expr | Replace Symbols in an Expression |
| replace_values_by_names | Replace Expression Value with Name |
| squote | Wrap a String in Single Quotes |
| suppress_warning | Suppress Specific Warnings |
| valid_time_units | Valid Time Units |
| vars2chr | Turn a List of Expressions into a Character Vector |
| warn_if_incomplete_dtc | Warn if incomplete dtc |
| warn_if_inconsistent_list | Warn If Two Lists are Inconsistent |
| warn_if_invalid_dtc | Warn If a Vector Contains Unknown Datetime Format |
| warn_if_vars_exist | Warn If a Variable Already Exists |
| what_is_it | What Kind of Object is This? |