[R] How to speed the shut down of the graphic device

[Philippe Hupé]

Andrew C. Ward a écrit :

>Dear Philippe,
>
>Perhaps you could try a different graphics device (maybe
>postscript). On my machine, the time differences were all 1
>second rather than the 3 you reported.If 300s is really
>too long for you, you could get a new computer or run your
>script on a faster one.
>

I have a computer with 3GHz processor (Pentium IV) and 2 Go of RAM so I 
don't think this is a matter of computer performance :).

>
>Andrew C. Ward
>
>CAPE Centre
>Department of Chemical Engineering
>The University of Queensland
>Brisbane Qld 4072 Australia
>andreww at cheque.uq.edu.au
>
>
>Quoting Philippe Hupé <Philippe.Hupe at curie.fr>:
>
>  
>
>>hello,
>>
>>I use R1.7.1 under winXP and I am running the following
>>script example :
>>
>>
>>for (i in 1:10)
>>{
>>        x <- rnorm(100)
>>        png( paste("D:/essai",i,".png",sep=""))
>>        plot(x)
>>        t1 <- Sys.time()
>>        dev.off()
>>        t2 <- Sys.time()
>>        print(t2-t1)
>>       
>>}
>>
>>at each step, it takes about 3 seconds to shut down the
>>graphic device. 
>>I want to generate about one hundred of image and of
>>course it takes too 
>>much time. Is there any trick ?
>>
>>Philippe
>>
>>______________________________________________
>>R-help at stat.math.ethz.ch mailing list
>>https://www.stat.math.ethz.ch/mailman/listinfo/r-help
>>
>>    
>>
>
>
>.
>
>  
>


-- 

--------------------------------------------------

Philippe Hupé
Institut Curie - Equipe Bioinformatique
26, rue d'Ulm - 75005 PARIS France
+33 (0)1 42 34 65 29

Philippe.Hupe at curie.fr <mailto:Philippe.Hupe at curie.fr>