[Rd] How to create a function calling two functions with unknown number of parameters?

ZT2008 zhongwent at yahoo.com
Sat Apr 5 00:03:01 CEST 2008

... can be used to represent unknown number of parameters passed into a

For example, I write a function g. g calls another function f1. 

For example f1 could be different random number generation function. 

when f1=rnorm(), it has 3 parameters n, mean and standard deviation.

when f1=rexp(), it has 2 parameters n and rate. 

g can be defined as

g <- function(f1, ...) {

My problem is what about g calls two functions with unknown number of

In this case one ... doesn't help. 

If I define g as follows:

g <- function(f1, f2, ...) {

It seems ... is only passed to f1, it can't be passed to f2. 

Can anybody help me? Thanks!

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