[R] dev.list() not a list?

[Bill Simpson]

Isn't dev.list() a list? I am using R-0.99a

> dev.list()
NULL
> is.list(dev.list())
[1] FALSE
> is.null(dev.list())
[1] TRUE
Fine.


> x11()
> dev.list()
X11 
  2 
> is.null(dev.list())
[1] FALSE
> is.list(dev.list())
[1] FALSE
What is it then, if not a list? Is this a bug?


My basic problem: I want my function to do
x11(height=6, width=6, pointsize=20)
if no x11 window is open yet (if dev.list() is NULL)

Thanks for any help.

Bill

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