> Hi, > > Is there an easy way to add symbols to a line in a scatter plot, so that > only a few symbols are added per line (a line drawn based on a large set > of > data points) , in order to distinguish several lines in one graph (not a > symbol for each data point as is the default in plot()). > Hi Yvonne, You can use the "points" function to plot every 10th point (or other sequence).
points(x[seq(1,length(x),by=10)],y[seq(1,length(y),by=10)],...) Jim ______________________________________________ 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.
