Hi Tal, You have set the resolution, but you have not set the width/height. The res argument generally controls how many pixels per inch (PPI which is often used similarly to DPI). So if you want 800 DPI and you want it to be a 4 x 4 inch graph something like:
tiff(file = "temp.tiff", width = 3200, height = 3200, units = "px", res = 800) plot(1:10, 1:10) dev.off() This will make a file that is 3200 x 3200 pixels, with an 800 resolution gives you 3200/800 = 4 inches. I would also recommend choosing some sort of compression or you will end up with a rather large file. Cheers, Josh On Sun, Aug 29, 2010 at 9:46 AM, Tal Galili <tal.gal...@gmail.com> wrote: > Hello all. > > A Journal we are sending an article to is asking for the following: > > To ensure the best reproduction quality of your figures we would appreciate > high resolution files. All figures should preferably be in TIFF or EPS > format... and should have the following resolution: Graph: 800 - 1200 DPI > > Photo: 400 - 800 DPI > > Color (only CMYK): 300 - 400 DPI (DPI = dots per inch) > > Since I am sending a graph, I am trying to save it using tiff. > > Here is the code I am using: > > tiff(filename = "c:\\aaa.tiff", > > res = 800, pointsize = 2) > > plot(1:100) > > dev.off() > > But sadly, it produces a very "bulky" image (and if I where to not use > pointsize = 2, I would get the error massage: > > Error in plot.new() : figure margins too large > > ) > > > I am clearly missing something basic here about the use of DPI, I would > appreciate any help in figuring this out. > > Thanks! > > > Tal > > ----------------Contact > Details:------------------------------------------------------- > Contact me: tal.gal...@gmail.com | 972-52-7275845 > Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) | > www.r-statistics.com (English) > ---------------------------------------------------------------------------------------------- > > [[alternative HTML version deleted]] > > ______________________________________________ > 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. > -- Joshua Wiley Ph.D. Student, Health Psychology University of California, Los Angeles http://www.joshuawiley.com/ ______________________________________________ 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.
