By the end of this chapter you will be able to:

• Set up aggregate attributes on pipes
• Read aggregate attributes from pipes into a

• table

Set up aggregate attributes on pipes

In this exercise you will create a report of total and average last billed amounts, aggregated by Region

.

In your Introduction to Modelling analysis model, add a new

table:

1. Hover over Customers in England, and press 

1. Insert excerpt
   _table_new _table_new nopanel true

   .
2. Give the new

1. table the Name: Customer Summary by Region

2. Insert excerpt
   _save _save nopanel true

    the table settings.
3. Double-click on the

1. pipe between your Customers in England table and Customer Summary by Region table to open its settings.
2. Go to the

1. Sort/Group section:

1. 
   
   • Press

     Insert excerpt
     _attributes_show _attributes_show nopanel true

      to open the list of attributes, and drag the attribute Region into the list of

1. • Sort/

1. • Group attributes for the pipe.
2. Go to the Aggregate Attributes

1. section:
   1. Press 

1. 1. Insert excerpt
      _add _add nopanel true

       to add a new aggregate attribute

1. 1. and set:
      

1. 1. • Aggregate Function

1. 1. • : Count
      • Leave the Attribute blank

1. 1. • New Attribute Name

1. 1. • : CountRecords
      • Press 

1. 1. • Insert excerpt
        _finish _finish nopanel true

        .
   2. Add another aggregate attribute:

1. 1. • Press 

        Insert excerpt
        _attributes_show _attributes_show nopanel true

         in the Aggregate Attributes section.
      • Drag the attribute BILLAMOUNT into the aggregate attributes list
      • Note that this already uses the attribute function Sum – leave this as it is.
      • Update the name of the aggregate value:
        • Double-click on the new aggregate attribute.
        • Update the

1. 1. • • Name to TotalLastBillAmount
        • Press 

1. 1. • • Insert excerpt
          _finish _finish nopanel true

          .
   2. Add another aggregate attribute:

1. 1. • Press 

        Insert excerpt
        _table_attributes_show _table_attributes_show nopanel true

      • Drag the attribute BILLAMOUNT

1. 1. •  into the aggregate attributes list
      • Update the details for this new aggregate attribute:
        • Double-click on it
        • Update the Aggregate Function to Average.
        • Update the

1. 1. • • Name to AvgLastBillAmount
        • Press 

1. 1. • • Insert excerpt
          _finish _finish nopanel true

          .

Configure your output table

1. Drag the

1. attribute Region from the Sort/Group

1. section in the pipe settings onto the

1. table Customer Summary by Region in the model.
2. Drag the aggregate attributes you added above, from the Aggregate Attributes

1. section of the pipe onto the

1. table Customer Summary by Region.
2. In the

1. pipe

1. settings, press 

1. Insert excerpt
   _finish _finish nopanel true

   .

Run analysis

1. Run analysis on Customer Summary by Region.

1. View the data in this

1. table – check that the aggregated report has been generated correctly, like the image below:
2. Image Added
3. In the model window, click 

   Insert excerpt
   _save_saveModel _save_saveModel nopanel true

   .