Identify Global Objects in R Expressions
Drop certain types of globals
A representation of a set of globals
Locates and retrieves a set of global variables by their names
Get all global objects of an expression
Identify the packages of the globals
Gets the length of an object without dispatching
Walk the Abstract Syntax Tree (AST) of an R Expression
Identifies global ("unknown" or "free") objects in R expressions by code inspection using various strategies (ordered, liberal, conservative, or deep-first search). The objective of this package is to make it as simple as possible to identify global objects for the purpose of exporting them in parallel, distributed compute environments.
Useful links