From Kurt.Hornik@ci.tuwien.ac.at  Tue Apr 10 08:02:40 2001
From: Kurt.Hornik@ci.tuwien.ac.at (Kurt Hornik)
Date: Tue, 10 Apr 2001 09:02:40 +0200
Subject: [Rd] confint's in t.test
In-Reply-To: <Pine.LNX.4.21.0104100749250.18520-100000@artemis.imbe.med.uni-erlangen.de>
References: <Pine.LNX.4.21.0104100749250.18520-100000@artemis.imbe.med.uni-erlangen.de>
Message-ID: <15058.45072.744621.93607@mithrandir.hornik.net>

>>>>> Torsten Hothorn writes:

>> t.test(rnorm(10), rnorm(10), alternative="less")

>          Welch Two Sample t-test 

> data:  rnorm(10) and rnorm(10) 
> t = -2.3628, df = 17.848, p-value = 0.01485 
> alternative hypothesis: true difference in means is less than 0 
> 95 percent confidence interval:
>          NA -0.2590752 
>         ^^^^

> I suppose that is what the prototype does, should one replace it by
> -Inf, + Inf resp. ?

I'd say yes (which agrees with confidence intervals for the variance
and odds ratios) ...

-k
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[Rd] confint's in t.test
Kurt Hornik