we wrote a routine to compute the coordinates needed to draw a dendrogram for hierarchical clustering results to help out Johann. It’s more complicated than one might expect at first blush.

If any other folks need it, just send us a request and we’d be happy to provide it. As the code is specifically for drawing, it probably won’t be released with the NMath Stats product.

Paul

I would have liked to show a dendrogram and heat map, but I don’t think there is support for these chart types in the free MS Chart package. Of course, the NMath ClusterAnalysis object contains all the information you would need to draw such charts.

More full-featured commercial charting packages usually have these chart types. For example, NMath works well with Infragistics (http://www.infragistics.com/), Syncfusion (http://www.syncfusion.com/), Nevron (http://www.nevron.com/), and SoftwareFX (http://www.softwarefx.com/), to name a few.

In the future, we will have a blog entry showing a heat map and other examples of charting using NMath.

Ken