[R] Need frequency distribution for x,y coordinates

[mark shanks]

Hi,

I have a set of data in x,y coordinates across the range of -5 to 5 in each 
dimension. I would like to obtain the frequency distribution of the 
different points, and then graph them so you can see which of the points are 
the most frequently occurring.

This would seem to be easy in Matlab, which has the hist3 command for doing 
frequency distributions/histograms in 3 dimensions. However, as far as I can 
tell, R does not have a hist3 command.

Is there any easy way to do this in R? I'm investigating whether matlab or R 
is more suitable for our needs, but don't want to reject R due to my present 
ignorance of its functions.

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