Just an advice: I recommend use the png device instead of jpeg for plotting purposes, it gives better results for graphs. Jpeg is better for photos. Off course IMHO :-)

I wish a nice day

Tomas

stephen sefick wrote:
you have to go in sequence- you are opening a pdf device then a jpeg device
and ploting to the jpeg device.  My suggestion would be to do
pdf()
plot(yourplot)
dev.off()

jpeg
plot(yourplot)
dev.off()

this should work

On Tue, Jul 22, 2008 at 9:50 AM, Monica Pisica <[EMAIL PROTECTED]>
wrote:

Hi,

I want to save a plot automatically as a pdf and jpg, and if I open the pdf device first and jpeg second only the jpeg file saves correctly �. If I do
reverse, only the pdf file saves correctly.

pdf('E:/my_graphs/test1.pdf', bg = "white")
jpeg('E:/my_graphs/test1.jpg', quality = 100, bg = "white", res = 200,
width = 7, height = 7, units = "in")
plot(seq(1, 10), seq(1, 10))
dev.off()
dev.off()

In this case the pdf is not saved correctly and cannot be viewed by Adobe � the error is "it has no pages". If the jpeg device is first open �. It will save an empty page. Of course I can open one device at a time have the plot
saved and close that device, and open it again and do same thing, but I
think I should be able to have the plot command only once. I am working on a
Windows machine, R.2.7.0.

Any suggestions will be very much appreciated.

Thanks,

Monica


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