findGlobals            package:codetools            R Documentation

Find Global Functions and Variables Used by a Closure

Description:

     Finds global functions and variables used by a closure.

Usage:

     findGlobals(fun, merge = TRUE) 

Arguments:

     fun: closure.

   merge: logical

Details:

     The result is an approximation. R semantics only allow variables
     that might be local to be identified (and event that assumes no
     use of 'assign' and 'rm').

Value:

     Character vector if 'merge' is true; otherwise, a list with
     'functions' and 'variables' components.

Author(s):

     Luke Tierney

Examples:

     findGlobals(findGlobals)
     findGlobals(findGlobals, merge = FALSE)

