From ligges at statistik.uni-dortmund.de  Tue Apr 25 18:00:48 2006
From: ligges at statistik.uni-dortmund.de (Uwe Ligges)
Date: Tue, 25 Apr 2006 18:00:48 +0200
Subject: [Rd] R 2.3.0: Use of NULL as an environment is deprecated
In-Reply-To: <E4A9111DA23BA048B9A46686BF727CF4039088@DEFRAXMB01.corp.amvescap.net>
References: <E4A9111DA23BA048B9A46686BF727CF4039088@DEFRAXMB01.corp.amvescap.net>
Message-ID: <444E47B0.6070101@statistik.uni-dortmund.de>

Pfaff, Bernhard Dr. wrote:

> Pfaff, Bernhard Dr. wrote:
> 
> 
>>Dear R-Devel subscriber,
>>
>>first, let me express my thank to the R-Core team for the new release!
> 
> I
> 
>>appreciate their efforts and time spent to enhance R.
>>In accordance with the 'NEWS' file (see excerpt of it below), 
>>
>>[...
>>o	Changed the environment tree to be rooted in an empty
>>	environment, available as emptyenv().  baseenv() has been
>>	modified to return an environment with emptyenv() as parent,
>>	rather than NULL.
>>
>>...
>>
>>o	Use of NULL as an environment is deprecated and gives a warning.
>>...]
>>
>>I detected the warning message as announced for a couple of
> 
> contributed
> 
>>packages, e.g.
>>
>>library(ape)
>>library(car)
>>library(chron)
>>library(urca)
> 
> 
> 
> Not so for me. Are you sure you have reinstalled those packages under 
> R-2.3.0?
> 
> Uwe Ligges
> 
> 
> Dear Uwe,
> 
> thank you for your hint. That fixes the warnings for packages 'ape',
> 'car' and 'chron' issued formerly. However, even after a fresh install
> the warnings still show up for the packages 'VLMC' and 'urca', as an
> example.
> Any further clues are most welcome. 


OS? R release?

and please report the result of

   packageDescription("urca")
   packageDescription("VLMC")

Uwe Ligges


> Best,
> Bernhard
> 
> 
>>Now, I am wondering what would be a suitable/elegant way to fix the
>>packages' code such that the warning does not appear any longer. I am
>>adressing this question to R-devel, because this might also be of
>>interest for other package mainatiners.
>>
>>Many thanks in advance for any hints and pointers.
>>
>>Regards,
>>Bernhard
>>
>>
>>
>>
>>Dr. Bernhard Pfaff
>>Global Structured Products Group
>>(Europe)
>>
>>Invesco Asset Management Deutschland GmbH
>>Bleichstrasse 60-62
>>D-60313 Frankfurt am Main
>>
>>Tel: +49(0)69 298 07230
>>Fax: +49(0)69 298 07178
>>Email: bernhard_pfaff at fra.invesco.com 
>>*****************************************************************
>>Confidentiality Note: The information contained in this
> 
> mess...{{dropped}}
> 
>>______________________________________________
>>R-devel at r-project.org mailing list
>>https://stat.ethz.ch/mailman/listinfo/r-devel
> 
>



[Rd] R 2.3.0: Use of NULL as an environment is deprecated
Uwe Ligges