[R] ls() and classes

[Martin Maechler]

>>>>> "GaGr" == Gabor Grothendieck <ggrothendieck at gmail.com>
>>>>>     on Tue, 18 Mar 2008 23:50:28 -0400 writes:

    GaGr> Try:
    GaGr> eapply(.GlobalEnv, class)

    GaGr> or perhaps

    GaGr> unlist(eapply(.GlobalEnv, class))

    GaGr> or

    GaGr> str(eapply(.GlobalEnv, class))

nice!  {and we've also seen the slightly higher-level
         'globalenv()' instead of '.GlobalEnv' }

Not really answering Erin's question, I'd like to mention

  ls.str()

which had been created in the distant past to be used possibly
in a similar situation to where Erin wanted to get each class.

Martin

    GaGr> On Tue, Mar 18, 2008 at 11:39 PM, Erin Hodgess <erinm.hodgess at gmail.com> wrote:
    >> Dear R People:
    >> 
    >> I want to get the class of all of the objects in my directory.
    >> 
    >> I was trying:
    >> 
    >> do.call(class,list=ls())
    >> 
    >> but got an "unused argument error".
    >> 
    >> I'm sure it's simple, but I'm just not seeing it.
    >> 
    >> Any help would be much appreciated.
    >> 
    >> Sincerely,
    >> Erin
    >> 
    >> 
    >> --
    >> Erin Hodgess
    >> Associate Professor
    >> Department of Computer and Mathematical Sciences
    >> University of Houston - Downtown
    >> mailto: erinm.hodgess at gmail.com
    >> 
    >> ______________________________________________
    >> R-help at r-project.org mailing list
    >> https://stat.ethz.ch/mailman/listinfo/r-help
    >> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
    >> and provide commented, minimal, self-contained, reproducible code.
    >> 

    GaGr> ______________________________________________
    GaGr> R-help at r-project.org mailing list
    GaGr> https://stat.ethz.ch/mailman/listinfo/r-help
    GaGr> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
    GaGr> and provide commented, minimal, self-contained, reproducible code.