[R] an error message with 't.test' with R under Unix

[Peter Dalgaard]

"Tao Shi" <shitao at hotmail.com> 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).



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