[R] duplicate data points on a line graph

[Jim Lemon]

NDC/jshipman wrote:
> Hi,
>     I am new to R plot.  I am trying to increase the data point 
> observation when duplicate data points exist
>
> x    y
> 1    10
> 1    10
> 2    3
> 4    5
> 9     8
>
>
> in the about example  1, 10 would be displayed larger than the other 
> data points.  Could someone give me some assistance with this problem
Hi Jeffery,
Have a look at sizeplot, cluster.overplot and count.overplot in the 
plotrix package.

Jim