Lexical scoping is not what I expect

On 13-06-29 11:58 PM, Greg Snow wrote:

If you want to write really confusing code it is possible to do:

`1` <- 2

`1` + 1

and things like that, but it is probably a good idea not to.

This is actually pretty simple, as the White Knight could tell you.  `1` is what the name of 2 is called.  The name really is "2".  It's called "two", but that's only what it's called.  It really is two.

Duncan Murdoch

as.name("1")

On Fri, Jun 28, 2013 at 7:30 PM, Rolf Turner <rolf.turner at xtra.co.nz> wrote:

On 29/06/13 02:54, John Fox wrote:

Dear Duncan and Steve,

Since Steve's example raises it, I've never understood why it's legal to
change the built-in global "constants" in R, including T and F. That just
seems to me to set a trap for users. Why not treat these as reserved
symbols, like TRUE, Inf, etc.?

I rather enjoy being able to set

    pi <- 3

:-)

    cheers,

        Rolf Turner