For each element in the Region Array point

  Dump the Region listed in the element in Region ID Array

  Set counter to 0

  For each item in Region that matches the current element in Item Class Array

    If (the element has an Attribute matching the current

      element in the Attribute Name Array) than

      If (the attribute value matches the current element in the

          Attribute Value Array) than

        Increment Counter

      End if

    End if

    Next item

  Get the point id of the current element in Count Point ID Array Point

  Set the point value to the counter

Next Region

More information

Attribute Counts.

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