[R] How to show non user defined data set such as cu.summary (from rpart)?

[Uwe Ligges]

Yes, after you have loaded rpart using library("rpart"), you will find 
the search() list similar to this one:

R>  search()
  [1] ".GlobalEnv"        "package:rpart"     "package:psych" 
"package:stats"
  [5] "package:graphics"  "package:grDevices" "package:datasets" 
"package:utils"
  [9] "package:fortunes"  "package:methods"   "Autoloads" 
"package:base"


In order to list the contents of the environment of the rpart package,
use
   ls(pos=2)
now.

Uwe Ligges





On 05.03.2011 17:36, John Edwards wrote:
> Hi All,
>
> ls() doesn't show cu.summary. ?ls says "When invoked with no argument at the
> top level prompt, \u2018ls\u2019 shows what data sets and functions a user
> has defined." Therefore, the reason ls() doesn't show cu.summary is because
> cu.summary is from a package but not user defined. Is there a way to show
> not only user defined data sets but also data sets from loaded packages?
>
>> library(rpart)
>> str(cu.summary)
> 'data.frame': 117 obs. of  5 variables:
>   $ Price      : num  11950 6851 6995 8895 7402 ...
>   $ Country    : Factor w/ 10 levels "Brazil","England",..: 5 5 10 10 10 7 5
> 6 6 7 ...
>   $ Reliability: Ord.factor w/ 5 levels "Much worse"<"worse"<..: 5 NA 1 4 2 4
> NA 5 5 2 ...
>   $ Mileage    : num  NA NA NA 33 33 37 NA NA 32 NA ...
>   $ Type       : Factor w/ 6 levels "Compact","Large",..: 4 4 4 4 4 4 4 4 4 4
> ...
>> ?ls
>> ls()
> character(0)
>
> -John
>
> 	[[alternative HTML version deleted]]
>
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