showTree              package:codetools              R Documentation

Print Lisp-Style Representation of R Expression

Description:

     Prints a Lisp-style representation of R expression.  This can be
     useful for understanding how some things are parsed.

Usage:

     showTree(e, write = cat)

Arguments:

       e: R expression.

   write: function of one argument to write the result.

Author(s):

     Luke Tierney

Examples:

     showTree(quote(-3))
     showTree(quote("x"<-1))
     showTree(quote("f"(x)))

