[R] ncp t & Fortran error & power of some tests

Prof Brian Ripley ripley at stats.ox.ac.uk
Mon Aug 4 09:37:29 CEST 2003

On Fri, 1 Aug 2003, Jen Krann wrote:

> Hi everybody, I have three questions to ask us:
> a) R incorporates a function for the Non-central T
> distribution which unfortunately and, as you know, is
> not available in Splus 4.5. In
> http://www.stats.ox.ac.uk/pub/Swin I found the Don
> MacQueen´s noncent.zip but when I run it in Splus 4.5
> the following error message appears: "Error in
> .Fortran ("vectnc",: "VECTNC" is not a symbol in the
> load table". May be I did not installed it correctly
> or (as I suppose) it is incompatible with this version
> of Splus. 
> I looked in the directory for Splus 6.0 
> http://www.stats.ox.ac.uk/pub/MASS3/Winlibs but the
> update of this function is not there. 

Why should it be?  

> Do you know of
> some alternative function for the Non-central T in
> Splus 4.5 or how to solve the problem with
> noncent.zip?

This is *R*-help: the obvious answer is to use R.

Otherwise you can compile Don McQueen's function from the sources 

Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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