Help using Base SAS procedures

Clustering with proc surveyreg

Reply
Contributor
Posts: 26

Clustering with proc surveyreg

Hi everyone,

I'm currently writting my thesis and I'm facing a problem with the proc surveyreg. My teacher wants me to cluster my sample for an analysis with the help of procsurveyreg  but I do not succeed to.

I want to cluster on two factors. Here is a sample of the data I want to cluster. I need to cluster the traders based on transactions and volume.

Id_traderTransactionsVolume
11245
2380
3865
440120

Could you please help me with it ?

Respected Advisor
Posts: 2,655

Re: Clustering with proc surveyreg

SURVEYREG supports clustering through the CLUSTER statement and stratification through the STRATA statement.  Please share what code you are attempting.  You may need to run PROC FASTCLUS (or some other clustering procedure) prior to your analysis, to classify the various records into clusters.

Steve Denham

Super User
Posts: 10,500

Re: Clustering with proc surveyreg

Cluster is also a sample design issue in survey analysis procs. For example students sampled within each School building of a School district. The STRATA could be School Districts and Clusters are the Schools. You would as a minimum need a totals data set and each strata should indicate the number of clusters.

If your not sampling withing the Id_trader then it looks like you may be looking at more of a domain analysis then clusters.

If you are looking for similarity between your ID_trader values then you would use one of the clustering procedures to identify the similar groups and likely want to merge that into the data as a model variable but not a sample cluster.

Ask a Question
Discussion stats
  • 2 replies
  • 203 views
  • 0 likes
  • 3 in conversation