The PARENT statement specifies a character or numeric
variable identifying the node
in the tree that is the parent of each observation. The PARENT variable
must have the same formatted length as the NAME variable.
If the PARENT statement
is omitted, PROC TREE looks for a variable called _PARENT_. If
variable is not found in the data set, PROC TREE issues an error message and
- PARENT variables ;
Copyright © 1999 by SAS Institute Inc., Cary, NC, USA. All rights reserved.