%r% | Create a reference to a subset of an object |
contents | Returns or changes parcel contents |
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 |
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. |
`%r%` | Create a reference to a subset of an object |