Pfaff, Bernhard Dr.
2006-Apr-25 14:34 UTC
[Rd] R 2.3.0: Use of NULL as an environment is deprecated
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)
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}}
Uwe Ligges
2006-Apr-25 15:33 UTC
[Rd] R 2.3.0: Use of NULL as an environment is deprecated
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> 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
Pfaff, Bernhard Dr.
2006-Apr-25 15:47 UTC
[Rd] R 2.3.0: Use of NULL as an environment is deprecated
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 ofcontributed> 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. 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 thismess...{{dropped}}> > ______________________________________________ > R-devel at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel
Pfaff, Bernhard Dr.
2006-Apr-25 16:08 UTC
[Rd] R 2.3.0: Use of NULL as an environment is deprecated
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 Hello Uwe, here is the detailed information:> R.version_ platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status major 2 minor 3.0 year 2006 month 04 day 24 svn rev 37909 language R version.string Version 2.3.0 (2006-04-24) Package: urca Version: 0.9-2 Date: 2006-02-25 Title: Unit root and cointegration tests for time series data Author: Bernhard Pfaff <bernhard.pfaff at pfaffikus.de> Maintainer: Bernhard Pfaff <bernhard at pfaffikus.de> Depends: R (>= 2.0.0) Imports: nlme, methods, graphics, stats LazyLoad: yes Description: Unit root and cointegration tests encountered in applied econometric analysis are implemented. License: GPL version 2 or newer URL: http://www.r-project.org Packaged: Sat Feb 25 19:34:29 2006; bp Built: R 2.3.0; ; 2006-03-03 21:12:31; windows -- File: C:/R/package/urca/DESCRIPTION> packageDescription("VLMC")Package: VLMC Version: 1.3-9 Note: ===== vlmc.version in R/vlmc.R Date: 2005-10-06 Author: Martin Maechler <maechler at stat.math.ethz.ch> Maintainer: Martin Maechler <maechler at stat.math.ethz.ch> Title: VLMC -- Variable Length Markov Chains Description: Functions, Classes & Methods for estimation, prediction, and simulation (bootstrap) of VLMC -- Variable Length Markov Chain -- Models Depends: stats, MASS License: GPL version 2 or later Packaged: Thu Oct 6 15:00:09 2005; maechler Built: R 2.3.0; i386-pc-mingw32; 2006-03-03 19:04:48; windows -- File: C:/R/package/VLMC/DESCRIPTION Both packages have Depends/Imports directives in their DESCRIPTION files. Now, I do get the following for VLMC if I do a 'library(MASS)' first:> library(MASS)Warning message: Verwendung der NULL Umgebung ist veraltet> library(VLMC) >and likewise for urca:> library(nlme)Warning message: Verwendung der NULL Umgebung ist veraltet> library(urca) >> 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 > >
Liaw, Andy
2006-Apr-25 17:49 UTC
[Rd] R 2.3.0: Use of NULL as an environment is deprecated
From: Uwe Ligges> > Pfaff, Bernhard Dr. wrote: > > > 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 > > > > > > Hello Uwe, > > > > here is the detailed information: > > > > > > > >>R.version > > > > _ > > platform i386-pc-mingw32 > > arch i386 > > os mingw32 > > system i386, mingw32 > > status > > major 2 > > minor 3.0 > > year 2006 > > month 04 > > day 24 > > svn rev 37909 > > language R > > version.string Version 2.3.0 (2006-04-24) > > > > > > Package: urca > > Version: 0.9-2 > ^^^ > > Date: 2006-02-25 > > Title: Unit root and cointegration tests for time series data > > Author: Bernhard Pfaff <bernhard.pfaff at pfaffikus.de> > > Maintainer: Bernhard Pfaff <bernhard at pfaffikus.de> > > Depends: R (>= 2.0.0) > > Imports: nlme, methods, graphics, stats > > LazyLoad: yes > > Description: Unit root and cointegration tests encountered > in applied > > econometric analysis are implemented. > > License: GPL version 2 or newer > > URL: http://www.r-project.org > > Packaged: Sat Feb 25 19:34:29 2006; bp > > Built: R 2.3.0; ; 2006-03-03 21:12:31; windows > ^^^^^ > > Well, 0.9-3 is on CRAN, so you have *not* upgraded your *own* > package!!! > > Please upgrade ALL your packages and re-install also ALL > those that are > from prior R releases.The problem could be the mirror site: Some sites are not as up-to-date as others. Andy> Uwe Ligges > > > > > > > > -- File: C:/R/package/urca/DESCRIPTION > > > > > > > > > >>packageDescription("VLMC") > > > > Package: VLMC > > Version: 1.3-9 > > Note: ===== vlmc.version in R/vlmc.R > > Date: 2005-10-06 > > Author: Martin Maechler <maechler at stat.math.ethz.ch> > > Maintainer: Martin Maechler <maechler at stat.math.ethz.ch> > > Title: VLMC -- Variable Length Markov Chains > > Description: Functions, Classes & Methods for estimation, > prediction, > > and simulation (bootstrap) of VLMC -- Variable Length Markov > > Chain -- Models > > Depends: stats, MASS > > License: GPL version 2 or later > > Packaged: Thu Oct 6 15:00:09 2005; maechler > > Built: R 2.3.0; i386-pc-mingw32; 2006-03-03 19:04:48; windows > > > > -- File: C:/R/package/VLMC/DESCRIPTION > > > > Both packages have Depends/Imports directives in their DESCRIPTION > > files. Now, I do get the following for VLMC if I do a > 'library(MASS)' > > first: > > > > > >>library(MASS) > > > > Warning message: > > Verwendung der NULL Umgebung ist veraltet > > > >>library(VLMC) > >> > > > > > > and likewise for urca: > > > > > >>library(nlme) > > > > Warning message: > > Verwendung der NULL Umgebung ist veraltet > > > >>library(urca) > >> > > > > > > > > > > > >>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 > >> > >> > > > > ______________________________________________ > > R-devel at r-project.org mailing list > > https://stat.ethz.ch/mailman/listinfo/r-devel > > ______________________________________________ > R-devel at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel > >
Pfaff, Bernhard Dr.
2006-Apr-26 07:28 UTC
[Rd] R 2.3.0: Use of NULL as an environment is deprecated
Dear Andy, Uwe and remaining list subscribers, now, coming closer to the evil's root. Yesterday, I source compiled on a Linux box at home and the result is the same behaviour as pointed out below. This is regardless of the package version of 'urca'. Aside of 'urca', other packages that have Imports/Depends entries in the DESCRIPTION to packages that are shipped within the standard library of R show the warning too, e.g. fMultivar, VLMC, to name but a few. I do have set on both OS, i.e. Windows and Linux, a second library tree in Renviron.site with R-LIBS. If I comment this out and do a reinstall of the packages, i.e. the packages are now installed in the standard library, the warning does not show up any longer. Has something changed with regard to additional libraries that slipped my notice by upgrading to version 2.3.0? Is it possible that during startup the environment is handeld/passed differently for standard and additional libraries? Would this odd behaviour qualify as a bug? Best, Bernhard From: Uwe Ligges> > Pfaff, Bernhard Dr. wrote: > > > 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 > > > > > > Hello Uwe, > > > > here is the detailed information: > > > > > > > >>R.version > > > > _ > > platform i386-pc-mingw32 > > arch i386 > > os mingw32 > > system i386, mingw32 > > status > > major 2 > > minor 3.0 > > year 2006 > > month 04 > > day 24 > > svn rev 37909 > > language R > > version.string Version 2.3.0 (2006-04-24) > > > > > > Package: urca > > Version: 0.9-2 > ^^^ > > Date: 2006-02-25 > > Title: Unit root and cointegration tests for time series data > > Author: Bernhard Pfaff <bernhard.pfaff at pfaffikus.de> > > Maintainer: Bernhard Pfaff <bernhard at pfaffikus.de> > > Depends: R (>= 2.0.0) > > Imports: nlme, methods, graphics, stats > > LazyLoad: yes > > Description: Unit root and cointegration tests encountered > in applied > > econometric analysis are implemented. > > License: GPL version 2 or newer > > URL: http://www.r-project.org > > Packaged: Sat Feb 25 19:34:29 2006; bp > > Built: R 2.3.0; ; 2006-03-03 21:12:31; windows > ^^^^^ > > Well, 0.9-3 is on CRAN, so you have *not* upgraded your *own* > package!!! > > Please upgrade ALL your packages and re-install also ALL > those that are > from prior R releases.The problem could be the mirror site: Some sites are not as up-to-date as others. Andy> Uwe Ligges > > > > > > > > -- File: C:/R/package/urca/DESCRIPTION > > > > > > > > > >>packageDescription("VLMC") > > > > Package: VLMC > > Version: 1.3-9 > > Note: ===== vlmc.version in R/vlmc.R > > Date: 2005-10-06 > > Author: Martin Maechler <maechler at stat.math.ethz.ch> > > Maintainer: Martin Maechler <maechler at stat.math.ethz.ch> > > Title: VLMC -- Variable Length Markov Chains > > Description: Functions, Classes & Methods for estimation, > prediction, > > and simulation (bootstrap) of VLMC -- Variable Length Markov > > Chain -- Models > > Depends: stats, MASS > > License: GPL version 2 or later > > Packaged: Thu Oct 6 15:00:09 2005; maechler > > Built: R 2.3.0; i386-pc-mingw32; 2006-03-03 19:04:48; windows > > > > -- File: C:/R/package/VLMC/DESCRIPTION > > > > Both packages have Depends/Imports directives in their DESCRIPTION > > files. Now, I do get the following for VLMC if I do a > 'library(MASS)' > > first: > > > > > >>library(MASS) > > > > Warning message: > > Verwendung der NULL Umgebung ist veraltet > > > >>library(VLMC) > >> > > > > > > and likewise for urca: > > > > > >>library(nlme) > > > > Warning message: > > Verwendung der NULL Umgebung ist veraltet > > > >>library(urca) > >> > > > > > > > > > > > >>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 > >> > >> > > > > ______________________________________________ > > R-devel at r-project.org mailing list > > https://stat.ethz.ch/mailman/listinfo/r-devel > > ______________________________________________ > R-devel at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel > >------------------------------------------------------------------------ ------ Notice: This e-mail message, together with any attachments,...{{dropped}}
Pfaff, Bernhard Dr.
2006-Apr-26 09:28 UTC
[Rd] R 2.3.0: Use of NULL as an environment is deprecated
>>>>> "BernPf" == Pfaff, Bernhard Dr <Bernhard_Pfaff at fra.invesco.com> >>>>> on Wed, 26 Apr 2006 08:28:34 +0100 writes:BernPf> Dear Andy, Uwe and remaining list subscribers, BernPf> now, coming closer to the evil's root. Yesterday, I source compiled on a BernPf> Linux box at home and the result is the same behaviour as pointed out BernPf> below. This is regardless of the package version of 'urca'. Aside of BernPf> 'urca', other packages that have Imports/Depends entries in the BernPf> DESCRIPTION to packages that are shipped within the standard library of BernPf> R show the warning too, e.g. fMultivar, VLMC, to name but a few. BernPf> I do have set on both OS, i.e. Windows and Linux, a second library tree BernPf> in Renviron.site with R-LIBS. If I comment this out and do a reinstall BernPf> of the packages, i.e. the packages are now installed in the standard BernPf> library, the warning does not show up any longer. Has something changed BernPf> with regard to additional libraries that slipped my notice by upgrading BernPf> to version 2.3.0? I don't think so. I ***NEVER*** install a package into the standard library. We have all CRAN packages in a different library, (and Bioconductor too) and I typically use about 6 library (paths), and I don't have your problem. I only get your warning if I get a version of a package that was installed previous to 2.3.0 (or it's alpha / beta / rc ) versions. BernPf> Is it possible that during startup the environment is handeld/passed BernPf> differently for standard and additional libraries? Would this odd BernPf> behaviour qualify as a bug? If it was general, yes, but I think it's not. Hello Martin and all others involved in this thread, thank you very much for your time and patience. After having updated the packages in the standard library, too, the warning message does indeed not show up any longer by issuing the command library(urca) and similar with other packages. Just out of curiosity, I wonder what has changed in these packages (i.e. nlme, foreign, cluster and VR got updated) from downloading the '.exe' or the tarball in the official 2.3.0 release up to now? Best, Bernhard ***************************************************************** Confidentiality Note: The information contained in this mess...{{dropped}}
Duncan Murdoch
2006-Apr-26 14:09 UTC
[Rd] R 2.3.0: Use of NULL as an environment is deprecated
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) > > 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.If you are a maintainer of a package getting this warning, then you should replace all uses of NULL as an environment by baseenv() (to get the previous behaviour), or emptyenv() (if you thought env=NULL gave you an empty environment). There's really not much a non-maintainer can do about this warning. Duncan Murdoch> > 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