| load {base} | R Documentation |
Reload Saved Datasets
Description
Reload datasets written with the function save.
Usage
load(file, envir = parent.frame())
loadURL(url, envir = parent.frame(), quiet = TRUE, ...)
Arguments
file |
a connection or a character string giving the name of the file to load. |
envir |
the environment where the data should be loaded. |
url |
a character string naming a URL. |
quiet, ... |
additional arguments to
|
Details
load can load R objects saved in the current or any earlier
format. It can read a compressed file (see save)
directly from a file or from a suitable connection (including a call
to url).
loadURL is a convenience wrapper which downloads a file, loads
it and deletes the downloaded copy.
Only R objects saved in the current format (used since R 1.4.0) can be read from a connection. If no input is available on a connection a warning will be given, but any input not in the current format will result in a error.
Value
A character vector of the names of objects created, invisibly.
Warning
Saved R objects are binary files, even those saved with
ascii = TRUE, so ensure that they are transferred without
conversion of end of line markers. load tries to detect this
case and give an informative error message.
See Also
save, download.file.
Examples
## save all data
save(list = ls(all=TRUE), file= "all.Rdata")
## restore the saved values to the current environment
load("all.Rdata")
## restore the saved values to the user's workspace
load("all.Rdata", .GlobalEnv)
## Not run:
## print the value to see what objects were created.
print(loadURL("http://some.where.net/R/data/kprats.rda"))
# or, avoiding making a local copy,
print(load(url("http://some.where.net/R/data/kprats.rda")))
## End(Not run)