[R] What command lists everything in a package?

[David Winsemius]

On Jul 3, 2009, at 1:21 PM, Mark Knecht wrote:

> Hi,
>   Two easy questions I'm sure.
>
> snipped as already answered

> 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"


What's wrong with using sessionInfo() ?

...or if you want (a lot) more information about the non-base packages  
try:

sessionInfo()$otherPkgs

David Winsemius, MD
Heritage Laboratories
West Hartford, CT