Message-ID: <Pine.BSO.4.63.0509271631450.9423@heinlein.openvistas.net>
Date: 2005-09-27T22:32:25Z
From: Jeff Ross
Subject: Make check fails on d-p-q-r-tests.R...
In-Reply-To: <Pine.LNX.4.61.0509272221250.18397@gannet.stats>
On Tue, 27 Sep 2005, Prof Brian Ripley wrote:
> I am afraid this does look like a real problem, if a minor one. We have for
> the first problem
>
> x <- 10^(ex <- c(1,2,5*(1:5),50,100,200,300,Inf))
> ex <- -c(rev(1/x), ex)
> qcauchy(ex, log=TRUE)
>
> The first entry of the result should be Inf and the last -Inf. From the
> output you have shown us I would guess the last is NaN.
>
> If this is what is going on, it is a problem but a somewhat esoteric one that
> probably reflects a lack of IEC60559 (aka IEEE754) conformance. It needs
> more hands-on debugging than we can provide on a help list.
>
Thanks for the analysis. I'll move this over to r-devel.
Jeff