Re: Validity of K Means Cluster

Posted by Art Kendall on Aug 08, 2011; 11:59am
URL: http://spssx-discussion.165.s1.nabble.com/Interrater-reliability-tp4663573p4677501.html

What does the word "reliable" mean to you?
How many cases do you have?
What is the nature of your data?
Are you sure that some other PROXIMITY measure might not be preferable?

I notice you did not save the cluster assignments.  Since k-means is very dependent on case order it is good practice to try some random-order of cases runs.

Art Kendall
Social Research Consultants

On 8/5/2011 10:33 AM, Jeanne Eidex wrote:

Hi Everyone,

 

This might be an overly simple question, but, the output of this simple clustering syntax doesn’t offer much information to determine how reliable these clusters are.  Any suggestions?

 

QUICK CLUSTER q21 q22 q23 q24 q25 q26 q27 q28 q29 q30 q31 q32 q33 q34

  /MISSING=PAIRWISE

  /CRITERIA=CLUSTER(3) MXITER(10) CONVERGE(0)

  /METHOD=KMEANS(NOUPDATE)

  /PRINT INITIAL.

 

Thanks,

Jeanne

 

 

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