Thanks for your answer, Adai! Being a newbie, I finally tried a lot of things and wasted a stack of paper in order to get a black & white printer printable chart of good quality.
My experiences are the following: * do never (!) use the alpha correction color settings for transparency if the graph is to be printed (alpha correction also works with few formats, e.g. PDF 1.4) * the library(gstat), bpy.colors() color palette prints nicely in grey * there is a small difference in output from saving the graphs to PS or PDF with PS looking slightly better * set the line width with par(lwd=) * set the line style with par(lty=) * in the print dialog before printing: check if the automatic scaling option is set After doing all of this, my chart looks rather acceptable now. The R version used was R 2.0.1 on win2k and printing was done on a HP LJ 4M Plus. Thanks again for your answers! Best, Werner Adaikalavan Ramasamy wrote: > Searching for "graph publication" on > http://maths.newcastle.edu.au/~rking/R/ gave me the following hit : > http://tolstoy.newcastle.edu.au/R/help/04/03/0202.html which suggests > postscript(). > > Have you tried printing other documents in black and white on the same > printer or tried different printers for the same R graph. This will > hopefully eliminate printer as a possible culprit. Dying printer toners > sometimes makes the graph look worse than it actually is. > > > Regards, Adai > > > > > > On Tue, 2005-03-01 at 00:27 +0100, Werner Wernersen wrote: > >>Hi! >> >>I have browsed the help archives but did not find >>anything on the subject: How >>to make publication quality graphs with R best? >>Is there some document about that topic out there? The >>problem is that the >>graphs look nice on the screen but when printed in >>black and white every color >>apart from black doesn't look very nice. Is there some >>guideline how to set >>color palettes and or fill patterns for charts? >> >>Thank you very much for considering my question in >>advance. >> >>Best, >> Werner >> >>______________________________________________ >>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 >> > > > > ______________________________________________ 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