[R] Creating a pdf with layers?

2012-07-20 Thread Christoph Scherber
Dear all, Is it possible to create a pdf file with layers using the pdf() device in R? Many thanks for your help! Christoph (using R 2.15.1 on Windows 7 64-Bit) -- PD Dr Christoph Scherber Georg-August University Goettingen Department of Crop Science Agroecology Grisebachstrasse 6 D-37077

Re: [R] Creating a pdf with layers?

2012-07-20 Thread Prof Brian Ripley
On 20/07/12 12:07, Christoph Scherber wrote: Dear all, Is it possible to create a pdf file with layers using the pdf() device in R? No. Is it possible to specify layers in the R graphics language or any device? (From what I understand by 'layers', no.) The author of pdf() Many thanks

Re: [R] Creating a pdf with layers?

2012-07-20 Thread Christoph Scherber
Dear Prof Ripley, Many thanks for your response. In fact, latticeExtra and ggplot2 both state they work with layers, but essentially this is nothing more than sequentially adding graphical output to an existing device. But given that PDF can include layers since version 1.5 it would be