I don't know if the option is in EM's decision tree, but both proc split and proc hpsplit have an option that does that, namely USEVARONCE (see: http://support.sas.com/documentation/cdl/en/stathpug/67524/HTML/default/viewer.htm#stathpug_hpsplit_syntax01.htm ). You might want to check to see if it is available in EM's decision tree node.
Art, CEO, AnalystFinder.com
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