for the background try: # open a trellis device. If not open the next step will not work trellis.device(device=windows) #x11 in linux
# set background to white. Only works on an open trellis device background<-trellis.par.get("background") background$col<-"white" trellis.par.set("background",background) # set the default line colour to black plot.line<-trellis.par.get("plot.line") plot.line$col<-"black" trellis.par.set("plot.line",plot.line) # set the default symbol colour to black dot.symbol<-trellis.par.get("dot.symbol") dot.symbol$col<-"black" trellis.par.set("dot.symbol",dot.symbol) # set strip background color strip.background<-trellis.par.get("strip.background") strip.background$col<-"white" trellis.par.set("strip.background",strip.background) should be self explanatory try ?par to get na idea on how to get different colours for the line. the lattice/trellis manual is avalable in pdf from bell labs FC ========================= Federico C.F. Calboli Department of Biology University College London Room 327 Darwin Building Gower Street London WClE 6BT Tel: (+44) 020 7679 4395 Fax (+44) 020 7679 7096 [EMAIL PROTECTED] ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help