Clustering validation

[fri0]

HI, anyone know a index or something like that to make validations to a clustering model that I could apply monthly to see if the model is still working appropriately?

Thanks! va

[stat_sas]

Which method are using using for clustering?

[fri0]

K-means

[stat_sas]

Sorry, one more thing what do you have as a result of clustering modeling using k-means which needs to be validated.

[fri0]

Sorry for my late answer, I was not in the office. Well, I need to validate that the model is still working correctly.

The model is applied to new data monthly. Is there any way to validate that the clusters are still grouping similar cases?

[stat_sas]

What is included in the model which is applied monthly?

[fri0]

Could you be more specific please? It's not clear for me what do you try to say.

[stat_sas]

I am trying to understand what model algorithm have you developed using K-means clustering? What model algorithm/syntax will be used to cluster coming months data?