[R] I don't understand this

[Peter Dalgaard BSA]

Thomas Lumley <tlumley at u.washington.edu> writes:

> It may be the case that (expr)(expr)<-  is always invalid.

Semantically, maybe, but not syntactically. I.e. we can't catch it in
the parser, because "<-" is just another operator, and someone might
redefine it to something where that lhs makes sense (this is not quite
as crazy as it sounds; think about what is happening with other
operators inside model formulas).

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
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