From maechler@stat.math.ethz.ch  Wed May 22 13:59:17 2002
From: maechler@stat.math.ethz.ch (maechler@stat.math.ethz.ch)
Date: Wed, 22 May 2002 14:59:17 +0200 (MET DST)
Subject: Bug in pexp (PR#1590)
Message-ID: <200205221259.OAA16871@pubhealth.ku.dk>

>>>>> "dtrenkler" == dtrenkler  <dtrenkler@nts6.oec.uni-osnabrueck.de> writes:

    dtrenkler> I wonder if something like this has been reported
    dtrenkler> before:

    >> pexp(85:86,0.438)
    dtrenkler> [1] 1 -Inf

yes, it has been reported (May 11, R-help) for pweibull() and
was tracked to a bug in the new R internal expm1() function
which only shows when no system-internal expm1() function is
present. Hence the problem has only been seen on Windows.

It has been fixed in "R-patched" for quite a while, and we
recommend you get "R-patched" pre-compiled for Windows
by Prof Ripley

	  http://www.stats.ox.ac.uk/pub/bdr/RWin/Rpre/SetupRpatched.exe

Thank you for reporting it anyway (it was not obvious if you haven't
followed R-help closely).

-- 
Martin Maechler <maechler@stat.math.ethz.ch>	http://stat.ethz.ch/~maechler/
Seminar fuer Statistik, ETH-Zentrum  LEO C16	Leonhardstr. 27
ETH (Federal Inst. Technology)	8092 Zurich	SWITZERLAND
phone: x-41-1-632-3408		fax: ...-1228			<><

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Bug in pexp (PR#1590)
maechler@stat.math.ethz.ch