The three-dots construct in R

three_dots.R

test_function_1 <- function(a=1){
		cat("a is here",a)  
}

test_function_2 <- function(b,...){
	test_function_1(...)
}

test <- function(a,b){
	test_function_2(b,a)
}

test(10,20) # should print 10