10-12-2016 10:46 AM
Hi, I have a question when working on cluster analysis.
How can I draw an Elbow Evaluation plot in determining the best number of clusters? Thanks!
proc fastclus data=HOTEL_EMEA maxc=10 maxiter=10 out=clust; var avg_pct; run;
10-12-2016 11:13 PM
I would do Primary Component Analysis and get those two PC and polt them by proc sgplot ,and you could probably get N of clusters.
10-17-2016 02:08 PM
Could you please give me one simple example? What do you mean by 'get those two PC' in your reply?
10-18-2016 12:25 AM
use proc princomp to get two primary component of your data. And plot them at X-Y axis .you can see the number of cluster you should split.
Here is an example: