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Last Updated : 19 Jun, 2020

as.call() function in R Language is used to coerce the object of mode “list” to mode “call”. The first element of the list becomes the function part of the call.

Syntax: as.call(x)

Parameters:
x: an arbitrary R object

Example 1:

# R program to illustrate 
# as.call function 
  
# Calling the as.call() function 
as.call(list(list, 5, 10)) 
as.call(list(as.name("::"), as.name("list"), as.name("base"))) 

Output:

.Primitive("list")(5, 10)
list::base

Example 2:

# R program to illustrate 
# as.call function 
  
# Initializing a function round 
f <- round
  
# Calling the as.call() function 
as.call(list(f, quote(A))) 

Output:

.Primitive("round")(A)

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