Software

A number of SAS macros were added to the collection maintained by Clemens van Brunschot (Netherlands). The most recent addition was Interact, a decision tree macro for analysing the interactions among a list of variables in their prediction of a binary target variable, with the purpose of producing dummy variables (one for each end leaf of the decision tree). The macro produces the SAS code needed to create the dummies in a datastep. The macro has been limited to provide up to three interaction levels. The macro utilizes the SAS Treedisc and XMACRO macros (the former can be downloaded from the website below). The URL is: http://members.brabant.chello.nl/~c.vanbrunschot/macros.html

Clemens van Brunschot