[R] I don't understand this
Peter Dalgaard BSA
p.dalgaard at biostat.ku.dk
Tue Sep 2 20:45:55 CEST 2003
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
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907
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