O'Reilly logo

IBM SPSS Modeler Cookbook by Scott Mutchler, Tom Khabaza, Meta S. Brown, Dean Abbott, Keith McCormick

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Shuffle-down (nonstandard aggregation)

Some applications require a form of aggregation not directly supported in Modeler, for example, aggregating a set of Booleans or Flags with a logical or Boolean operator such as OR. This recipe shows how to combine sorting with sequence functions in filler nodes to perform nonstandard aggregations.

This technique originates with basket analysis using versions of Modeler that pre-date the inclusion of the SetToflag node. Without the Set-to-flag node, when an analysis required aggregating a set of Booleans, it was necessary to construct the required technique out of the then-existing nodes. Typically, this processing step started with multiple records for each customer, with several fields representing the presence ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required