stephen sefick wrote:
?lines
Or ?points or maybe ?matplot. Notice that there are a couple of snags,
such as having to adjust graphical parameters in order to make room
enough on the plot. Most introductory texts on R and R graphics cover
this, I think.
You can overlay arbitrary plots by setting par(new=TRUE) in between,
although that is almost always the wrong solution. (SAS's overlay
features are not worth cloning in my opinion. It will do things like
automatically set up a legend, but puts in funny restrictions: plotting
data and predicted values in the same plot is OK, plotting data by group
OK, data and predicted values by group not OK or at least not easy.)
On Mon, Jul 28, 2008 at 12:57 PM, Phillip R. Hunt <[EMAIL PROTECTED]>wrote:
I am trying to create a graph that puts three x-y plots (age vs rate for
three categories ) on a single plot. SAS does this with the overlay
function. I cannot find in the R documentation a method for doing this.
Any
help would be appreciated.
Thanks,
Phill
Phillip R. Hunt, Sc.D.
24 Pleasant St.
Newfields, NH 03856
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