Re: [R] Scatterplot Showing All Points

From: Jim Lemon <>
Date: Tue, 18 Dec 2007 19:10:22 +1100

Wayne Aldo Gavioli wrote:
> Hello all,
> I'm trying to graph a scatterplot of a large (5,000 x,y coordinates) of data
> with the caveat that many of the data points overlap with each other (share the
> same x AND y coordinates). In using the usual "plot" command,

>>plot(education, xlab="etc", ylab="etc")

> it seems that the overlap of points is not shown in the graph. Namely, there
> are 5,000 points that should be plotted, as I mentioned above, but because so
> many of the points overlap with each other exactly, only about 50-60 points are
> actually plotted on the graph. Thus, there's no indication that Point A shares
> its coordinates with 200 other pieces of data and thus is very common while
> Point B doesn't share its coordinates with any other pieces of data and thus
> isn't common at all. Is there anyway to indicate the frequency of such points
> on such a graph? Should I be using a different command than "plot"?
Hi Wayne,
While this is not a really pretty picture, you can get a viewable plot with count.overplot if the first two elements of "education" are named "x" and "y" and they are the coordinates you want to plot. Otherwise, pass the x and y coordinates separately.


Jim mailing list PLEASE do read the posting guide and provide commented, minimal, self-contained, reproducible code. Received on Tue 18 Dec 2007 - 08:10:12 GMT

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.2.0, at Tue 18 Dec 2007 - 09:30:20 GMT.

Mailing list information is available at Please read the posting guide before posting to the list.