Thanks Marc and Jim for the tips. The PDF file that I create with R looks about the same as the one you created. However, I need to get the graphic to be a certain size (300 pixels wide). I have been using the ImageMagick program to do so for other graphics:
convert test.pdf -resize 300x300 out.pdf then out.pdf looks rather poor (pixelly). The original image is too big. ANy ideas? Thanks a lot,Peter Am Mo, 24.10.2005, 22:53, schrieb Marc Schwartz (via MN): > On Mon, 2005-10-24 at 22:32 +0200, Dr. med. Peter Robinson wrote: > >> Dear List, >> >> >> I am sorry if this perhaps a too basic question, but I have not found >> an answer in Google or in the R help system. I am trying to use R to do >> a very simple analysis of some data (RT-PCR and Western analysis) with a >> T-test and >> to plot the results as a histogram with error bars. (I have pasted an >> example script at the bottom of this mail). In order to use this for >> publication, I would like to adjust the resolution and size of the final >> image. However, even using file types such as postscript or pdf that are >> vector based, I get rather bad-looking results with >>> pdf(file="test.pdf") source("script at bottom of mail") dev.off() >> >> using either pdf or postscript or jpg devices. >> >> >> Therefore I would like to ask the list, how to best produce a graphic >> from the script below that would fit into one column of a published >> article and have a high resolution (as eps, or failing that tiff or >> png)? Thanks in advance for any advice, >> >> >> Peter >> > > <Snip of code> > > > What OS are you on? > > > Running your example on FC4, I get the attached output for a pdf(). > > > I suspect that on your OS, the height and width arguments are not > appropriate by default. > > Thus, you may need to adjust your pdf (or postscript) function call to > explicitly specify larger height and width arguments. > > Also note that to generate an EPS file, pay attention to the details > section of ?postscript, taking note of the 'onefile', 'horizontal' and > 'paper' arguments and settings. > > > Also, check with your journal to see if they specify dimensions for such > graphics so that you can abide by their specs if provided. If they are > using LaTeX, there are means of specifying and/or adjusting the height > and/or width specs in the code based upon proportions of various measures > (ie. \includegraphics[width=0.9\textwidth]{GraphicsFile.eps} ). > > > HTH, > > > Marc Schwartz > > > ______________________________________________ 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