count.overplot {plotrix} | R Documentation |
count.overplot
checks for overlying points defined as points
separated by a maximum of tol
, a two element numeric vector of
the x and y tolerance. This defaults to 1/1000 of the plot range.
count.overplot(x,y,tol=NULL,...)
x,y |
Two numeric data vectors or the first two columns of a matrix or data frame. Typically the x/y coordinates of points to be plotted. |
tol |
The largest distance between points that will be considered to be overlying. |
... |
additional arguments passed to plot . |
nil
Jim Lemon
xy.mat<-cbind(sample(1:10,200,TRUE),sample(1:10,200,TRUE)) count.overplot(xy.mat)