comment Query or Set a "comment" Attribute

Description

These functions set and query a comment attribute for any R objects. This is typically useful for data.frames or model fits.

Contrary to other attributes, the comment is not printed (by print or print.default).

Assigning NULL or a zero-length character vector removes the comment.

Usage

comment(x)
comment(x) <- value

Arguments

x

any R object

value

a character vector, or NULL.

See Also

attributes and attr for other attributes.

Examples

x <- matrix(1:12, 3, 4)
comment(x) <- c("This is my very important data from experiment #0234",
                "Jun 5, 1998")
x
comment(x)

Copyright (©) 1999–2012 R Foundation for Statistical Computing.
Licensed under the GNU General Public License.