autoload {base}

R Documentation

On-demand Loading of Packages

Description

autoload creates a promise-to-evaluate autoloader and stores it with name name in .AutoloadEnv environment. When R attempts to evaluate name, autoloader is run, the package is loaded and name is re-evaluated in the new package's environment. The result is that R behaves as if file was loaded but it does not occupy memory.

Usage

autoload(name, package,...)
autoloader(name, package,...)
.AutoloadEnv

Arguments

name	string giving the name of an object
package	string giving the name of a package containing the object
...	other arguments to library

Value

This function is invoked for its side-effect.

See Also

delay, library

Examples

autoload("line","eda")
search()
ls("Autoloads")
all(ls("Autoloads") == ls(envir = .AutoloadEnv))
data(cars)
plot(cars)
z<-line(cars)
abline(coef(z))
search()
detach("package:eda")
search()
z<-line(cars)
search()

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