R devel - Sep 2006 - as.environment(NULL)

Hi

In NEWS, it says

	R CMD check now tests that the package can be loaded, and that
	the package and namespace (if there is one) can each be loaded
	in startup code (before the standard packages are loaded).


For package "onion",  I think I have followed all of
sections 1.6.1 - 1.6.6 of R-exts, and it passes  R CMD check for  
R-2.3.1.


However, using  R version 2.4.0 Under development (unstable)  
(2006-08-31 r39045)
under MacOSX 10.4.7, I get  this:


* checking R files for non-ASCII characters ... OK
* checking whether the package can be loaded ... ERROR
Error in get("Re", pos = NULL, mode = "function") :
         using 'as.environment(NULL)' is defunct
Error: unable to load R code in package 'onion'
Error: package/namespace load failed for 'onion'
Execution halted

It looks like this package has a loading problem: see the messages for
details.





in 00check.log.

I don't understand what I have to do to fix this.
In my NAMESPACE file there are lots of lines like this:


S3method("Re", quaternion)
S3method("Im", quaternion)
S3method("i", quaternion)
S3method("j", quaternion)
S3method("k", quaternion)


what do I have to do to make onion work under R-devel?



--
Robin Hankin
Uncertainty Analyst
National Oceanography Centre, Southampton
European Way, Southampton SO14 3ZH, UK
  tel  023-8059-7743

Your code contains

onion.R:"Re.default" <-
get("Re",pos=NULL,mode="function")
onion.R:"Im.default" <-
get("Im",pos=NULL,mode="function")

and has been giving deprecated warnings for a while (and ?get does not say 
NULL is allowable).  The relevant NEWS item is

    o	Use of NULL as an environment is now an error.


You need pos="package:base" there.


On Fri, 1 Sep 2006, Robin Hankin wrote:
> Hi
> 
> In NEWS, it says
> 
> 	R CMD check now tests that the package can be loaded, and that
> 	the package and namespace (if there is one) can each be loaded
> 	in startup code (before the standard packages are loaded).
> 
> 
> For package "onion",  I think I have followed all of
> sections 1.6.1 - 1.6.6 of R-exts, and it passes  R CMD check for  
> R-2.3.1.
> 
> 
> However, using  R version 2.4.0 Under development (unstable)  
> (2006-08-31 r39045)
> under MacOSX 10.4.7, I get  this:
> 
> 
> * checking R files for non-ASCII characters ... OK
> * checking whether the package can be loaded ... ERROR
> Error in get("Re", pos = NULL, mode = "function") :
>          using 'as.environment(NULL)' is defunct
> Error: unable to load R code in package 'onion'
> Error: package/namespace load failed for 'onion'
> Execution halted
> 
> It looks like this package has a loading problem: see the messages for
> details.
> 
> 
> 
> 
> 
> in 00check.log.
> 
> I don't understand what I have to do to fix this.
> In my NAMESPACE file there are lots of lines like this:
> 
> 
> S3method("Re", quaternion)
> S3method("Im", quaternion)
> S3method("i", quaternion)
> S3method("j", quaternion)
> S3method("k", quaternion)
> 
> 
> what do I have to do to make onion work under R-devel?
> 
> 
> 
> --
> Robin Hankin
> Uncertainty Analyst
> National Oceanography Centre, Southampton
> European Way, Southampton SO14 3ZH, UK
>   tel  023-8059-7743
> 
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
> 
-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595