"Tao Shi" <[EMAIL PROTECTED]> writes:

> Again, I don't see the error in R under Windows (R 2.3.0) or Unix (R2.3.1).  
> Is this the bug you were talking about?


                CHANGES IN R VERSION 2.3.0
....
    o   Some of the classical tests put unnecessary restrictions on the
        LHS in the formula interface (e.g., t.test(x+y ~ g) was not
        allowed).



-- 
   O__  ---- Peter Dalgaard             Ă˜ster Farimagsgade 5, Entr.B
  c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
 (*) \(*) -- University of Copenhagen   Denmark          Ph:  (+45) 35327918
~~~~~~~~~~ - ([EMAIL PROTECTED])                  FAX: (+45) 35327907

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