search for: centralit

Displaying 3 results from an estimated 3 matches for "centralit".

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2003 Feb 14
1
FW: [Fwd: Re: [S] Exact p-values]
...e more > arguments. > > For example, pchisq(29.8, df=1, lower.tail=F) produces the same > > answer, and pchisq(29.8, df=1, lower.tail=F, log=T) produces its > natural > > logarithm. Also, pchisq, dchisq, qchisq, and rchisq in R all have an > > "ncp" noncentrality parameter argument; only pchisq has such in S-Plus > > 6.1. Similarly, none of the Student's t functions in S-Plus have a > > non-centralitity parameter; in R, pt has an argument ncp, and from > this > > one can easily program ncp for dt, qt and rt. Also, the distri...
2004 Aug 31
2
sample size for t-tests
Dear all, Could any one please tell me the exact formula R uses to calculate the sample size for one-sample and two-sample t-tests? Thanks, Caimiao [[alternative HTML version deleted]]
2003 Feb 14
0
FW: [Fwd: Re: [S] Exact p-values]
...; For example, pchisq(29.8, df=1, lower.tail=F) produces the same > >> > answer, and pchisq(29.8, df=1, lower.tail=F, log=T) produces its > >>natural > >> > logarithm. Also, pchisq, dchisq, qchisq, and rchisq in R all have an > >> > "ncp" noncentrality parameter argument; only pchisq has such in > S-Plus > >> > 6.1. Similarly, none of the Student's t functions in S-Plus have a > >> > non-centralitity parameter; in R, pt has an argument ncp, and from > >>this > >> > one can easily program ncp...