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
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