| test_fun | R Documentation | 
This function verifies whether all of the arguments of another function already have assigned values. If an argument has a default value but there isn't a corresponding variable, it creates that variable.
test_fun(f, force_default = FALSE)
f | 
 A function  | 
force_default | 
 Whether or not to assign the default value to arguments that already have assigned values  | 
## Not run: 
f <- function(a, b = 3) {
  a * b
}
test_fun(f)
a
b
b <- 5
test_fun(f)
a
b
test_fun(f, TRUE)
a
b
a <- 2
test_fun(f)
a
b
## End(Not run)
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