Using multiple ellipses arguments in R

Question

Is it possible to have multiple ellipsis arguments in an R function? A simplified version of what I\'m trying to do is this:

plotgenerator<-function(x,y,         


        

Answer 1

You could so something similar to your second choice if you use do.call, which allows you to pass the arguments to a function as a list. E.g. pass axesarg as a list and then in your function have: do.call(axes,axesarg) etc

For example:

outer_fxn <- function(inner_args=list(), ...) {
    do.call(inner_fxn, inner_args)
}

inner_fxn <- function(...) {
    # do stuff
}

# function call
outer_fxn(inner_args=list(a=1, b=2), outer_arg1=3, etc)

In the above, any arguments that should be handled by the inner_fxn ... should be passed in with in the inner_args list. The outer_fxn ... arguments are handled as usual.