topic Clustering nodes in SAS EM in SAS Data Science

Clustering nodes in SAS EM

4Walk — Mon, 02 Dec 2019 21:09:56 GMT

Hi, I am trying to understand how SAS EM does Clustering. There are three nodes. Under Explore there are two, (i) Cluster and (ii) Variable Clustering. Then there is HP Cluster. Of the three only Variable Clustering generates dendrogram chart.

I have two questions.

1. What are the differences among the three nodes?

2. How to generate dendrogram when using Cluster or HP Cluster node?

Thank you.

Dileep

p.s. I am using SAS Enterprise Miner 14.2

Re: Clustering nodes in SAS EM

WendyCzika — Tue, 03 Dec 2019 14:50:22 GMT

Variable Clustering clusters your inputs for the purpose of dimension reduction. The other two, Cluster and HP Cluster, are for clustering observations for unsupervised segmentation of your data. There is some information about the differences between the 2 procedures used in these nodes here:

https://communities.sas.com/t5/SAS-Communities-Library/Tip-K-means-clustering-in-SAS-comparing-PROC-FASTCLUS-and-PROC/ta-p/221369

And more information on the Cluster node here:

https://communities.sas.com/t5/SAS-Communities-Library/Tip-Guidelines-for-Choosing-a-Clustering-Method-in-the-Cluster/ta-p/223483

Since these 2 nodes aren't performing hierarchical clustering, I don't believe you can create dendrograms for these.

Re: Clustering nodes in SAS EM

4Walk — Thu, 05 Dec 2019 17:44:21 GMT

Thank you, I appreciate it.

Dileep