1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
\name{elem}
\alias{elem}
\title{
Display Information about Elements in a Given Object
}
\description{
\emph{This function is depreciated. Please use \code{\link{ll}}
instead.}
Display name, class, size, and dimensions of each element in a given
object.
}
\usage{
elem(object=1, unit=c("KB","MB","bytes"), digits=0,
dimensions=FALSE)
}
\arguments{
\item{object}{object containing named elements, perhaps a model or
data frame.}
\item{unit}{required unit for displaying element size: "KB", "MB",
"bytes", or first letter.}
\item{digits}{number of decimals to display when rounding element
size.}
\item{dimensions}{whether element dimensions should be returned.}
}
\details{
A verbose alternative to \code{names()}.
}
\value{
A data frame with named rows and the following columns:
\item{Class}{element class.}
\item{KB}{element size \emph{(see notes)}.}
\item{Dim}{element dimensions \emph{(optional)}.}
}
\note{
The name of the element size column is the same as the unit used.
Elements of class \code{classRepresentation},
\code{ClassUnionRepresentation}, and \code{grob} do not have a defined
size, so 0 bytes are assumed for those.
}
\author{Arni Magnusson \email{arnima@u.washington.edu}}
\seealso{
\code{\link[base]{names}}, \code{\link[utils]{str}}, and
\code{\link[base]{summary}} display different information about object
elements.
\code{\link{ll}} and \code{\link{env}} are related to \code{elem}.
}
\examples{
\dontrun{
data(infert)
elem(infert)
model <- glm(case~spontaneous+induced, family=binomial, data=infert)
elem(model, dim=TRUE)
elem(model$family)
}
}
% Basics
\keyword{attribute}
\keyword{classes}
\keyword{list}
% Programming
\keyword{print}
\keyword{utilities}
|
