Hi list, I want to make a lot of graphics to my end course project. So, i was using this sintax:
jpeg(filename = "graf01.jpg", width = 1024, height = 1024, units = "px", pointsize = 25, quality = 100, bg = "grey95", res = NA, restoreConsole = TRUE) i=1 par(mfrow=c(4,1),col="grey90",font.lab=2) hist(sul[,i+2],nclass=75,xlab="Região Sul",ylab="Freqüência",col="antiquewhite4",main="") hist(PR[,i+2],nclass=75,xlab="Paraná",ylab="Freqüência",col="antiquewhite4", main="") hist(SC[,i+2],nclass=75,xlab="Santa Catarina",ylab="Freqüência",col="antiquewhite4",main="") hist(RS[,i+2],nclass=75,xlab="Rio Grande do Sul",ylab="Freqüência",col="antiquewhite4",main="") dev.off() But, I want to know how can I create an for to do that. Like that: for(i in 1:250){ jpeg(filename = "graf01.jpg", width = 1024, height = 1024, units = "px", pointsize = 25, quality = 100, bg = "grey95", res = NA, restoreConsole = TRUE) par(mfrow=c(4,1),col="grey90",font.lab=2) hist(sul[,i+2],nclass=75,xlab="Região Sul",ylab="Freqüência",col="antiquewhite4",main="") hist(PR[,i+2],nclass=75,xlab="Paraná",ylab="Freqüência",col="antiquewhite4", main="") hist(SC[,i+2],nclass=75,xlab="Santa Catarina",ylab="Freqüência",col="antiquewhite4",main="") hist(RS[,i+2],nclass=75,xlab="Rio Grande do Sul",ylab="Freqüência",col="antiquewhite4",main="") dev.off() } The problem is the name of the file, I want to do something like grafi.jpg where i goes from 1 to 250. Thanks a lot for the help. Best Regards, Leandro Marino ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.