unboundVariables

The (quoted) R expression to return the
  unbound variables for.

qexpr


  Returns the <em>unbound variables</em> of an R expression
  <code>expr</code>. The unbound variables are the variables in
  <code>expr</code> that are not bound (do not exist) in the
  environment of the caller of <code>unboundVariables</code>.


Twiddler is an interactive tool that automatically creates
a Tcl/Tk GUI for manipulating variables in any R expression.
See the documentation of the function twiddle to get started.

unboundVariables: Find the unbound variables of an R expression

Description

Usage

Arguments

Value