mlr3misc: crate – R documentation

Become an expert in R — Interactive courses, Cheat Sheets, certificates and more!

crate

Isolate a Function from its Environment

Put a function in a "lean" environment that does not carry unnecessary baggage with it (e.g. references to datasets).

crate(.fn, ..., .parent = .GlobalEnv)

`.fn`	(`function()`) function to crate
`...`	(any) The objects, which should be visible inside `.fn`.
`.parent`	(`environment`) Parent environment to look up names. Default so the global environment.

meta_f = function(z) {
  x = 1
  y = 2
  crate(function() {
    c(x, y, z)
  }, x)
}
x = 100
y = 200
z = 300
f = meta_f(1)
f()

Helper Functions for 'mlr3'

v0.10.0

LGPL-3

Authors

Michel Lang [cre, aut] (<https://orcid.org/0000-0001-9754-0393>), Patrick Schratz [aut] (<https://orcid.org/0000-0003-0748-6624>)

Initial release