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From Dawid Weiss <dawid.we...@cs.put.poznan.pl>
Subject Re: Clustering graph coloring and layout
Date Thu, 01 Dec 2011 07:57:43 GMT
This looks great, Ted, thanks for sharing.

Dawid

On Thu, Dec 1, 2011 at 3:32 AM, Ted Dunning <ted.dunning@gmail.com> wrote:
> Sure.  I attached it, but those get stripped.  I didn't realize that this
> was going to the list.
>
> Try here: http://dl.dropbox.com/u/36863361/cluster-viz.r
>
> And here for the image: http://dl.dropbox.com/u/36863361/xyz.png
>
> On Wed, Nov 30, 2011 at 4:04 PM, Grant Ingersoll <gsingers@apache.org>wrote:
>
>> 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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