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From Grant Ingersoll <gsing...@apache.org>
Subject Re: Clustering graph coloring and layout
Date Thu, 01 Dec 2011 00:04:11 GMT
Can you share the R code too?

On Nov 30, 2011, at 2:58 PM, Ted Dunning wrote:

> Here is some that I just whipped up.  I have also attached an example of the output.
> 
> In the sample output, notice how you can see different stories about what clusters the
brown-ish and purple clusters are near.<xyz.png>
> 
> On Tue, Nov 29, 2011 at 8:03 AM, Grant Ingersoll <gsingers@apache.org> wrote:
> I'm still learning R, do you have code handy you could share?
> 
> On Nov 29, 2011, at 6:25 AM, Ted Dunning wrote:
> 
> > Coloring is pretty easy in R, which is what I use.  I just build a color
> > map with the right number of indices and use the cluster id to index the
> > colormap.  For grins, I vary the transparency according to how seriously
> > down-sampled the cluster is.  That lets me get a good visual feel for the
> > actual cluster size.
> >
> > On Tue, Nov 29, 2011 at 5:03 AM, Grant Ingersoll <gsingers@apache.org>wrote:
> >
> >> Anyone have an easy algorithm for coloring clusters in a nice way?  That
> >> is, given k clusters, color each centroid and all of it's associated points
> >> in such a way that it is visually appealing and avoids, to the extent it
> >> can, coloring two unique clusters the same color.
> >>
> 
> 
> 
> 
> 

--------------------------------------------
Grant Ingersoll
http://www.lucidimagination.com




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