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. .Autoloaded contains the names of the packages for
which autoloading has been promised.
autoload(name, package, reset = FALSE, ...)
autoloader(name, package, ...)
.AutoloadEnv
.Autoloadedautoloader.library.delayedAssign, library
require(stats)
autoload("interpSpline", "splines")
search()
ls("Autoloads")
.Autoloaded
x <- sort(stats::rnorm(12))
y <- x^2
is <- interpSpline(x, y)
search() ## now has splines
detach("package:splines")
search()
is2 <- interpSpline(x, y+x)
search() ## and again
detach("package:splines")
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