ll: Describe Objects or Elements

In gdata: Various R Programming Tools for Data Manipulation

Describe Objects or Elements

Description

Display name, class, size, and dimensions of each object in a given environment. Alternatively, if the main argument is an object, its elements are listed and described.

Usage

ll(pos=1, unit="KB", digits=0, dim=FALSE, sort=FALSE, class=NULL,
   invert=FALSE, ...)

Arguments

pos	environment position number, environment name, data frame, list, model, S4 object, or any object that is.list.
unit	unit for displaying object size: "B", "KB", "MB", "GB", or first letter (case-insensitive).
digits	number of decimals to display when rounding object size.
dim	whether object dimensions should be returned.
sort	whether elements should be sorted by name.
class	character vector for limiting the output to specified classes.
invert	whether to invert the class filter, so specified classes are excluded.
...	passed to ls.

Value

A data frame with named rows and the following columns:

Class	object class.
KB	object size (see note).
Dim	object dimensions (optional).

Note

The name of the object size column is the same as the unit used.

Author(s)

Arni Magnusson, with contributions by Jim Rogers and Michael Chirico.

See Also

ll is a verbose alternative to ls (objects in an environment), names (elements in a list-like object), and slotNames (S4 object).

str and summary also describe elements in a list-like objects.

env is a related function that describes all loaded environments.

Examples

ll()
ll(all=TRUE)
ll("package:base")
ll("package:base", class="function", invert=TRUE)

ll(infert)
model <- glm(case~spontaneous+induced, family=binomial, data=infert)
ll(model, dim=TRUE)
ll(model, sort=TRUE)
ll(model$family)

gdata documentation built on Oct. 22, 2024, 9:06 a.m.