[R] the huge postscript plot

Thomas Lumley tlumley at u.washington.edu
Mon Jul 7 16:17:18 CEST 2003

On Sat, 5 Jul 2003, Yongchao Ge wrote:

> Hi Matt,
> Thanks for the help. I'm just wondering if some package or some
> options in par or ps.options exists so that I  can just use it directly.
> As we know, we can not just randomly sample 1000 of them as we may miss some
> important extreme points (outliers). We need to define a small distance
> d, when a clouds of points are within the distance of d,
> then we can randomly sample a few points from each clouds so we  don't
> lose any visual information. What it really needs is a fast algorithm
> to group 60,000 points into 1000+ of clusters. Each cluster's radius must
> be less than d.

I think the hexbin package (http://www.bioconductor.org) will do what you


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