[BioC] More environments facilities ?

[Robert Gentleman]

On Fri, Oct 01, 2004 at 04:58:40PM +0200, Adrian Alexa wrote:
> Dear Bioconductor developers,
> 
> 
> I'm using Bioconductor packages and I use more often environments. I
> was happy to see that there are new functions in the Biobase package
> that work with environments:   copyEnv, l2e, etc.

 And there are even more in R itself, things like $ and [[ work (but
 NOT for numeric indices, only for character values and they do NOT do
 partial matching). Also of note is as.list, which will coerce an
 environment to a list. If you want something that let's you peak at
 the values let me suggest DPExplorer.

 And also, please do note that eapply is a reasonable choice of apply
 for environments.


> 
> Unfortunately I didn't find a function that returns the 'lenght' (no.
> of elements) of an environment. I know that I can do:
> 
> > length(ls(env))

  why not length(env), which seems to both work and be faster...


> 
> but I think this is slow and somehow redundant. Also I know that I can
> write a simple C function, but I will like to have this facility into
> R and not loading my function every time.
> 
> I would like to know if such a function can (or will) be included into
> a next version of biobase package.
> 
> 
> Many thanks,
> 
> Adrian
> 
> 
> 
> -- 
> Adrian Alexa             
> Max-Planck-Institut fuer Informatik  
> Stuhlsatzenhausweg 85 Room 514 
> 66123 Saarbruecken, Germany
> 
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| Robert Gentleman                 phone : (617) 632-5250                   |
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