On 7/3/2009 1:21 PM, Mark Knecht wrote:
> Hi,
> Two easy questions I'm sure.
>
> 1) As an example if I use the code
>
> require(zoo)
>
> then once it's loaded is there a command that lists everything that
> zoo provides so that I can study the package?
ls("package:zoo") will list all the exported items in zoo, provided it
is attached. You can abbreviate that to the number in the search list,
which is usually 2 immediately after you attach the package. So
require(zoo)
ls(2)
will probably do what you want. Use search() to see the search list.
Duncan Murdoch
>
> Certainly help(zoo) gives me some clues about what zoo does but I'd
> like a list. Maybe there's a way to query something but in Rgui under
> Win Vista ls() returns nothing after zoo is loaded.
>
> 2) Related to the above, how do I tell what packages are currently
> loaded at any given time so that I don't waste time loading things
> that are already loaded? search() tells me what's available, but
> what's loaded? The best I can find so far goes like this:
>
>> a<-.packages(all.available = FALSE)
>> a
> [1] "zoo" "stats" "graphics" "grDevices" "utils" "datasets"
> [7] "methods" "base"
>>
>
> Maybe that's as good as it gets in code and if I want better then I
> write a function?
>
> Thanks,
> Mark
>
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https://stat.ethz.ch/mailman/listinfo/r-helpPLEASE do read the posting guide
http://www.R-project.org/posting-guide.htmland provide commented, minimal, self-contained, reproducible code.
