topic Re: Maximum Cluster Size in proc genmod in Statistical Procedures

Maximum Cluster Size in proc genmod

CathyVI — Sat, 22 Oct 2022 13:44:21 GMT

Hi,

I am new to pro genmod. I ran a model expecting to get a Maximum Cluster Size =12, and Minimum Cluster Size=12 but I am getting a maximum cluster of 24. How do I get a maximum cluster of 12. My data is a repeated data where each unique id has 12 rows.

I have provided a sample here.

bene_id Month_std

A -12

A -11

A -10

A -9

A -8

A -7

A -6

A -5

A -4

A -3

A -2

A -1

Re: Maximum Cluster Size in proc genmod

StatDave — Sat, 22 Oct 2022 22:02:03 GMT

Check your data. If all of your BENE_ID values are not unique, then you might have one or more values that have two sets of 12 observations associated with one BENE_ID value. You could use something like the following to see the number of observations in each BENE_ID value: proc means; class bene_id; var month_std; run;