R help - Jul 2010 - Can I set default parameters for the default graphics device?

I'm completely new to R, and I'd like to do something like this:

    > x=c(1,2,3)
    > plot(x,x)

At this point, R creates a file "Rplots.pdf", since the default device
is
PDF and the default filename is "Rplots.pdf".  I know I can set the
default
device like this:

    > options(device="png")

But is there a way to set the default device's default filename?

Thanks!

	[[alternative HTML version deleted]]

Unless you aren't writing scripts why wouldn't you just use something
like
this?
> x=c(1,2,3) 
> pdf("RRules.pdf")
> plot(x,x) 
> dev.off()
-- 
View this message in context:
http://r.789695.n4.nabble.com/Can-I-set-default-parameters-for-the-default-graphics-device-tp2290827p2290836.html
Sent from the R help mailing list archive at Nabble.com.

On 07/15/2010 07:10 PM, James wrote:
> I'm completely new to R, and I'd like to do something like this:
>
>      >  x=c(1,2,3)
>      >  plot(x,x)
>
> At this point, R creates a file "Rplots.pdf", since the default
device is
> PDF and the default filename is "Rplots.pdf".
Since you're completely new to R, I might ask what OS you're using, and
if
you're using R interactively?  If you are using R interactively, the default
device would probably create a new 'window' to display the graphic in. 
If
you're running in batch mode, then pdf is the default.


I know I can set the default
> device like this:
>
>      >  options(device="png")
>
> But is there a way to set the default device's default filename?
I guess you can probably just write your own wrapper function and use that as 
the device name.

Try:

mypng <- function(filename = "mydefault.png", ...) {
    png(filename, ...)
}

options(device = "mypng")

I did not test any of this, but I hope it works.