DM: DM : Datasets for clustering and cart-like trees ?

[Werner E. HELM]

Hi :

I'm looking for medium-sized datasets (customer data) that could be used for demonstrating various clustering techniques (find certain typical groups of customers) and also cart-like methods. I would need the data, a short description and , say, one proposal what one could find in the data (the rest could be done by us).

Looking forward to your responses,

Werner E. HELM.