| dput {base} | R Documentation |
Writes an ASCII text representation of an R object to a file or connection, or uses one to recreate the object.
dput(x, file = "", control = "showAttributes") dget(file)
x |
an object. |
file |
either a character string naming a file or a
connection. "" indicates output to the console. |
control |
character vector indicating deparsing options.
See .deparseOpts for their description. |
dput opens file and deparses the object x into
that file. The object name is not written (contrary to dump).
If x is a function the associated environment is stripped.
Hence scoping information can be lost.
Deparsing an object is difficult, and not always possible. With the
default control = c("showAttributes"), dput() attempts to deparse in
a way that is readable, but for more complex or unusual objects, not
likely to be parsed as identical to the original. Use control = "all"
for the most complete deparsing; use control = NULL
for the simplest deparsing, not even including attributes.
dput will warn if fewer characters were written to a file than
expected, which may indicate a full or corrupt file system.
To display saved source rather than deparsing the internal representation
include "useSource" in control. R currently saves source only for
function definitions.
To avoid the risk of a source attribute out of sync with the actual function definition, the source attribute of a function will never be written as an attribute.
Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988) The New S Language. Wadsworth & Brooks/Cole.
## Write an ASCII version of mean to the file "foo"
dput(mean, "foo")
## And read it back into 'bar'
bar <- dget("foo")
unlink("foo")
## Create a function with comments
baz <- function(x) {
# Subtract from one
1-x
}
## and display it
dput(baz)
## and now display the saved source
dput(baz, control = "useSource")