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Setting the base selection

You can run a Decision Tree with no base selection. In this case, the Decision Tree will identify the characteristics that distinguish the customers in your analysis selection from the whole customer base.

Using a Base Selection does give you a lot more flexibility, allowing you to work within part of your customer base identifying distinguishing characteristics of a subset of these. You may be just interested in a sub-set of your customer base.

Example scenario

For example, you may just be interested in customers who live in Scotland, and in understanding which of these people went to Sweden. In this case you could set the base selection to “Region = Scotland”. You would then be identifying characteristics that distinguish:

  • Customers who live in Scotland and took a holiday to Sweden.
  • From all customers who live in Scotland.

Use the Base Selection tab to specify the base selection.

For further details on setting a base selection, see Base selection.