as.function

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Convert Object to Function

as.function is a generic function which is used to convert objects to functions.

as.function.default works on a list x, which should contain the concatenation of a formal argument list and an expression or an object of mode "call" which will become the function body. The function will be defined in a specified environment, by default that of the caller.

Keywords
programming
Usage
as.function(x, ...)
"as.function"(x, envir = parent.frame(), ...)
Arguments
x
object to convert, a list for the default method.
...
additional arguments, depending on object
envir
environment in which the function should be defined
Value

The desired function.

Note

For ancient historical reasons, envir = NULL uses the global environment rather than the base environment. Please use envir = globalenv() instead if this is what you want, as the special handling of NULL may change in a future release.

See Also

function; alist which is handy for the construction of argument lists, etc.

Aliases
  • as.function
  • as.function.default
Examples
library(base) as.function(alist(a = , b = 2, a+b)) as.function(alist(a = , b = 2, a+b))(3)
Documentation reproduced from package base, version 3.3.0, License: Part of R 3.3.0

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