Re: [R] Symbols in graph

2012-01-04 Thread Jim Lemon
> 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()). >

[R] Symbols in graph

2012-01-04 Thread Y Nygård
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()). Thanks a lot!