topic Re: Scoring Codes after Proc Cluster rules found in SAS Programming

Scoring Codes after Proc Cluster rules found

Lulus — Fri, 22 Apr 2016 20:49:05 GMT

Hello All,

I'd like to learn if there is a scoring statement for Proc Custer?

so after I determine the Proc Cluster segment rules, I'd like to apply the "rules" (restuls from outtree=?) onto new dataset (same people with diffrent X generated with seperate time) to see if the cluster memmebrship stays the same.

Is there any "scoring codes" for doing this work?

thank you for your help in advance!

Re: Scoring Codes after Proc Cluster rules found

PGStats — Sat, 23 Apr 2016 02:00:41 GMT

Look at proc fastclus with options outstat= and instat=. First step, do the clustering on original dataset and output cluster statistics with outstat=. Second step, call proc fastclus again with another dataset and use option instat= to bring back the cluster definitions produced with the original dataset. The second step does assignment only.

Re: Scoring Codes after Proc Cluster rules found

Ksharp — Sat, 23 Apr 2016 06:30:03 GMT

That would lead you to DISCRIM Analysis ,Not CLUSTER Analysis, Check PROC DISCRIM .

Re: Scoring Codes after Proc Cluster rules found

Lulus — Mon, 25 Apr 2016 13:48:08 GMT

I'd like to know the scoring procedure specifically for Proc Cluster. thank you!

Re: Scoring Codes after Proc Cluster rules found

Lulus — Mon, 25 Apr 2016 13:49:27 GMT

so is there no way to score after "model building" by proc cluster?

Re: Scoring Codes after Proc Cluster rules found

Ksharp — Tue, 26 Apr 2016 01:07:19 GMT

Yes. That is DISCRIM Analysis thing. How do you know your test data would be properly clustered ? The difference thing between DISCRIM Analysis and Cluster Analysis is DISCRIM has a TRAIN dataset, CLUSTER Analysis don't have.