| funprog-package | Implementation of pure functional programming languages functions | 
| %on% | Transform a binary function with a unary function | 
| descending | Reverse a sorting function | 
| group_eq | Group vector values | 
| group_if | Group vector values | 
| iterate | Apply a function repeatedly | 
| on | Transform a binary function with a unary function | 
| partition | Partition a vector in two | 
| sort_by | Sort with auxiliary function | 
| unique_by | Unique with auxiliary function |