Describe Objects or Elements

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

Keywords
classes, utilities, attribute, print, data, list, environment
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, or any object that is.list.

unit

unit for displaying object size: "bytes", "KB", "MB", or first letter.

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.

See Also

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

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

env is a related function that describes all loaded environments.

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

data(infert)
ll(infert)
model <- glm(case~spontaneous+induced, family=binomial, data=infert)
ll(model, dim=TRUE)
ll(model, sort=TRUE)
ll(model$family)
Documentation reproduced from package gdata, version 2.18.0, License: GPL-2

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