All,

Yesterday, Frank Millard posted what I thought was a simple question about how to set up loops.

I replied, 'Look at the Loop-end loop command in the documentation.'

He replied. I did b4 asking for help. The solution I was looking was not straight forward in the docs.

I want to control a loop based on the results of a two step cluster analysis. I want to find clusters within clusters. So, if the analysis produces 4 clusters, saved in a new variable "var1" by the analysis, I need to construct a loop control such that: Loop var1 Cases are selected for each cluster in var1; the two step cluster syntax is modified to create new variable output for each cluster in var1; Run the two step cluster END

My reply this morning.

Frank, I think there are others on the list with more experience with clustering and clusters. I've never done a cluster analysis. That said, the idea of 'finding clusters within clusters' seems odd to me. That is, why wouldn't you just extract more clusters. That said, I think that a macro loop may be more relevant to your question because you are wanting to loop through procedure commands rather than transformation commands. There are macro examples, including a loop command, in one of the appendices of the syntax ref manual. I've only set up a couple of simple macros. Other folks, please jump in.

Gene Maguin

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