The TREESPLIT Procedure

VIICODE Statement

VIICODE <options>;

The VIICODE statement writes SAS DATA step code to a file or to a catalog entry. The SAS DATA step code creates new variables on the basis of the detected variable interactions.

You can specify the following options in addition to all options in the CODE statement. For more information about the syntax of the CODE statement, see the section CODE Statement in Chapter 3: Shared Concepts.

ADD: requests that the newly created variables be of the form .
LIMIT=number: specifies the maximum number of new variables to create. By default, LIMIT=200.
MISS: requests that the generated code handle missing values.
MULTIPLY: requests that the newly created variables be of the form .
SUBTRACT: requests that the newly created variables be of the form .
THRESHOLD=number: requests that interactions with an importance less than number times the maximum interaction importance be ignored, where number must be between 0 and 1. By default, THRESHOLD=0.0001.

If the VII= option is not specified in the PROC TREESPLIT statement, then the VIICODE statement is ignored. For more information about variable interaction importance, see the section Variable Interaction Importance.

Last updated: December 21, 2018