R help - Mar 2006 - name of the graphics output

Hello.

In the file list.txt, I have the name of n files in data frame format. I 
want to make an image for each file and save the images in pdf format.

To do this, I do the following:

llista = scan(file="list.txt",what=list(nom=""))
for (file.name in llista[[1]]){
        aux=read.table(file=file.name)
        aux=as.matrix(aux)
        pdf()
        image(aux)
        system("mv Rplots.pdf file.name.pdf")
        dev.off()
}

All is OK except for the command
system("mv Rplots.pdf file.name.pdf").
All the outputs names are file.name.pdf but I want to put a different 
name for each graphic.
I have tried
pdf(file="file.name.pdf") but it doesn't work.

How can I make it?

Thanks,

Arnau.

On Tue, Mar 14, 2006 at 12:55:47PM +0100, Arnau Mir Torres wrote:
> All the outputs names are file.name.pdf but I want to put a different 
> name for each graphic.
you can use paste() to put together the command:

file ="foo"
system( paste("mv Rplots.pdf ", file,  ".name.pdf",
sep='') )

cu
	Philipp

-- 
Dr. Philipp Pagel                            Tel.  +49-8161-71 2131
Dept. of Genome Oriented Bioinformatics      Fax.  +49-8161-71 2186
Technical University of Munich
Science Center Weihenstephan
85350 Freising, Germany

 and

Institute for Bioinformatics / MIPS          Tel.  +49-89-3187 3675
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      for Environment and Health
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85764 Neuherberg, Germany
http://mips.gsf.de/staff/pagel

On 3/14/2006 6:55 AM, Arnau Mir Torres wrote:
> Hello.
> 
> In the file list.txt, I have the name of n files in data frame format. I 
> want to make an image for each file and save the images in pdf format.
> 
> To do this, I do the following:
> 
> llista = scan(file="list.txt",what=list(nom=""))
> for (file.name in llista[[1]]){
>         aux=read.table(file=file.name)
>         aux=as.matrix(aux)
>         pdf()
>         image(aux)
>         system("mv Rplots.pdf file.name.pdf")
>         dev.off()
> }
> 
> All is OK except for the command
> system("mv Rplots.pdf file.name.pdf").
> All the outputs names are file.name.pdf but I want to put a different 
> name for each graphic.
> I have tried
> pdf(file="file.name.pdf") but it doesn't work.
Try pdf(file=paste(file.name,".pdf",sep="").

Duncan Murdoch
> 
> How can I make it?
> 
> Thanks,
> 
> Arnau.
> 
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