Dear useRs, Is there a way to 'properly' format %d when plotting more than one page on png()? 'Properly' means to me with leading 0s, so that the PNGs become easy to navigate in a file/image browser. Lacking a better solution I ended up using the code below, but would much prefer something like png("test_%d.png",bg="white",width=1000,height=700) where %d could be formatted like formatC(%d,digits=0,wid=3,flag="0",mode="integer")
Thank you, b. #---works, but is rather complicated--- pngno <- 0 ; i <- 1 for (w in 1:53) { if (i %in% c(4*0:100+1)) { pngno <- pngno + 1 png(paste("test_",formatC(pngno,digits=0,wid=4,flag="0",mode="integer"), ".png",sep=""),bg="white",width=1000,height=750) par(mfrow=c(2,2),mai=c(4,5,3,2)/10,omi=c(0.2,0,0,0), cex.axis=1,cex.main=1.2) } plot(1:10,main=w) if (i %in% c(4*1:100)) dev.off() i <- i+1 } dev.off() >From: Mike Prager <Mike.Prager <at> noaa.gov> >Subject: Re: [R] Automatic creation of file names >Newsgroups: gmane.comp.lang.r.general >Date: 2005-09-22 14:51:54 GMT (2 weeks, 1 day, 23 hours and 55 minutes ago) > >Walter -- > >P.S. The advantage of using formatC over pasting the digits (1:1000) >directly is that when one uses leading zeroes, as in the formatC example >shown, the resulting filenames will sort into proper order. > >...MHP > >You can use paste() with something like > > formatC(number,digits=0,wid=3,flag="0") > >(where number is your loop index) to generate the filenames. > >on 9/22/2005 10:21 AM Leite,Walter said the following: > >>I have a question about how to save to the hard drive the one thousand >>datasets I generated in a simulation. ://www.R-project.org/posting-guide.html ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html