Man pages for refset
Subsets with Reference Semantics
| contents | Returns or changes parcel contents |
| is.parcel | Checks whether an object is a parcel |
| refset | Create a reference to a subset of an object |
| refset-package | Subsets with Reference Semantics |
| unwrap_as | Unwrap contents of a parcel into a new variable |
| wrap | Wrap an expression and its environment into a parcel. |
| wrapset | Convenience function to create a parcel containing a refset. |
