Thanks Jim,
actually I need to keep open two devices at the same time, and within
the loop access either of them in alternation. In MatLab there is the
command Figure(#) which keeps track of the open devices and direct the
output of the plot to whichever of them.
For example:
plot_filenames<-c("plot1.png","plot2.png","plot3.png")
for (i in 1:5) {
png(plot_filenames[1])
par(mfrow=c(1,2))
hist(sample(i:10,30,TRUE)) #???
png(plot_filenames[2]) #???
par(mfrow=c(1,2))
hist(sample(i+1:15,30,TRUE))
dev.off() #???
}
Hope I've been clear.
Thanks, Efisio
===========================================
On 19/02/2015 10:36, Jim Lemon wrote:
> Hi efisio,
> I read this as wanting to start a new graphics device, then set some
> plot parameters, display two plots and then close the graphics device
> at each iteration of the loop. If so,
>
> plot_filenames<-c("plot1.png","plot2.png","plot3.png")
> for(plotfn in plot_filenames) {
> png(plotfn)
> par(mfrow=c(1,2))
> hist(sample(1:5,30,TRUE))
> hist(sample(1:5,30,TRUE))
> dev.off()
> }
>
> Jim
>
>
> On Thu, Feb 19, 2015 at 7:25 PM, efisio solazzo
> <efisio.sola...@jrc.ec.europa.eu
> <mailto:efisio.sola...@jrc.ec.europa.eu>> wrote:
>
> Dear,
> cannot find a way to direct multipanel plots to different figures
> (files) while within a loop.
>
> Say, the loop creates two plots each step: one plot should go to
> figure 1 and the other to figure 2.
> Same for the next steps of the loop: the plots should go to figure
> 1 and figure 2 in a multipanel fashion.
>
> I am not sure at which point to open the files and set the
> multipanel parameters...all I can get is two files with all plots
> overlaid to the same position.
>
> Thanks
>
> ______________________________________________
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>
--
Efisio SOLAZZO, Ph.D.
European Commission, Joint Research Centre,
Institute for Environment and Sustainability,
TP123, Via E. Fermi, 2749 I-21027 Ispra (VA), Italy
Tel: +390332789944 Fax: +390332785837
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