[Rd] R_DT_val accuracy (PR#6692)

maechler at stat.math.ethz.ch maechler at stat.math.ethz.ch
Wed Mar 24 17:03:15 CET 2004

>>>>> "Morten" == Morten Welinder <terra at gnome.org>
>>>>>     on Wed, 24 Mar 2004 15:53:21 +0100 (CET) writes:

    Morten> Full_Name: M. Welinder Version: 1.8.1 OS: Solaris
    Morten> Submission from: (NULL) (

    Morten> Currently R has...
not quite true!

Currently, R is in beta testing phase,
and everyone is

     *really* *really* *really* 

kindly asked to work with R 1.9.0 beta  -- particularly before
even considering sending a bug report. 

I've done something along your suggestion quite a few weeks ago
and the NEWS entry has been for a while

    o	The internal header nmath/dpq.h has slightly improved macros
	R_DT_val() and R_DT_Cval(), a new R_D_LExp() and improved
	R_DT_log() and R_DT_Clog();  this improves accuracy in several
	[dpq]-functions {for "extreme" arguments}.

Martin Maechler, 
Seminar fuer Statistik, ETH Zurich, Switzerland

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