| ll {R.oo} | R Documentation |
Generates a list of informative properties of all members of an environment.
## Default S3 method:
ll(pattern=".*", ..., private=FALSE, properties=getOption("R.oo::ll/properties"), sortBy=NULL, envir=parent.frame())
pattern |
Regular expression pattern specifying which members to
return. If ".*", all names are matched. |
... |
A named vector of format functionName=value, where
functionName() will be called on each member found. If the
result matches the value, the member is returned, otherwise
not. |
private |
If TRUE, also private members, i.e. members with
a name starting with a . (period), will be listed, otherwise not. |
properties |
Names of properties to be returned. There must exist
a function with the same name, because it will be called. This way
one can extract any type of property by defining new methods. |
sortBy |
Name or index of column (property) to be sorted by.
If NULL, the objects are listed in the order they are found. |
envir |
An environment, a search path index or a name of a package
to be scanned. |
Returns a data.frame containing information about all the members.
It is possible to set the default value of argument properties
by setting option "R.oo::ll/properties", e.g.
options("R.oo::ll/properties"=c("data.class", "dimension")).
If this option is not set when the package is loaded, it is set to
c("data.class", "dimension", "objectSize").
Henrik Bengtsson (http://www.braju.com/R/)
ll.Object().
## Not run:
To list all objects in .GlobalEnv:
> ll()
member data.class dimension objectSize
1 *tmp* Person 1 428
2 as.character.Person function NULL 1208
3 country character 1 44
4 equals.Person function NULL 2324
5 filename character 1 84
6 getAge function NULL 372
7 getAge.Person function NULL 612
8 getName.Person function NULL 628
9 hashCode.Person function NULL 1196
10 last.warning list 1 192
11 obj Person 1 428
12 Person Class NULL 2292
13 setAge function NULL 372
14 setAge.Person function NULL 2088
15 setName function NULL 372
16 setName.Person function NULL 760
17 staticCode.Person function NULL 2372
To list all functions in the methods package:
ll(mode="function", envir="methods")
To list all numeric and character object in the base package:
ll(mode=c("numeric", "character"), envir="base")
To list all objects in the base package greater than 40kb:
subset(ll(envir="base"), objectSize > 40000)
## End(Not run)