Dendrogram by GPL

[Kirill Orlov]

Is it possible to draw a dendrogram, such as after hierarchical clustering, via GPL?
Admit that the necessary output data for this (such as agglomeration schedule or whatever) is provided. What might be the GPL syntax to draw that output data as dendrogram? GPL gurus, please share your ideas. Many thanks.

[Andy W]

I recently had a blog post showing how to use the layout.tree network layout. See Network Xmax Tree in SPSS



How is the data returned after the clustering? To make the edge lists from more usual data formats I typically use VARSTOCASES in some hacky ways (see http://andrewpwheeler.wordpress.com/2013/06/30/making-an-edge-list-in-spss/ and http://andrewpwheeler.wordpress.com/2014/01/09/quick-spss-tip-suppressing-output/ for some examples).