[R] Scoping bug!?

[Kurt Hornik]

>>>>> Thomas Lumley writes:

> On Thu, 17 Dec 1998, Thomas Lumley wrote:
>> On Thu, 17 Dec 1998, Thomas Lumley wrote:
>> 
>> > On Thu, 17 Dec 1998, Marcus Eger wrote:
>> > 
>> > > Hello - any suggestions?!
>> > > 
>> > > "fun" <-  function (a1,a2,a3)  {
>> > > ...
>> > >  x<-rnorm(50)
>> > >  a<-locfit(~x)
>> > > ...
>> > > }
>> > > 
>> > > does not work, (Error: Object "x" not found) but
>> > 
>> > Can we have more details: I get (current release version,
>> > sun-sparc-solaris2.6)
>> > 
>> 
>> Actually I do get the scoping bug. I had a variable called x in the global
>> environment before, which is why it worked.
>> 


> Ok, the solution is to change the line
> 	frm <- eval(m, sys.parent())
> to
> 	frm <- eval(m, sys.frame(sys.parent()))

> about 10 lines down from the top of locfit().

Correct.
Actually, one may have to replace all occurrences of sys.parent() by
sys.frame(sys.parent()).

-k
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