Displaying 1 result from an estimated 1 matches for "unlessalreadydone".
2014 May 01
3
How to test if an object/argument is "parse tree" - without evaluating it?
...lt;- substitute(expr)
expr
}
but it would be neat to do this without passing an extra argument. If
this is not possible to implement in plain R, can this be done
internally inspecting SEXP:s and so on? Even better would be if
substitute() could do this for me, e.g.
expr <- substitute(expr, unlessAlreadyDone=TRUE)
Any suggestions?
Thanks,
Henrik