Just putting this here in case it comes up again for someone else ... As discussed over email - surrogate rules - i.e. looking for another variable to split on in the case of an observation containing a missing value for the primary splitting variable - are not displayed in the english rules. (Thanks to Susan Haller for pointing this out.) Note that the Decision Tree node automatically handles missing values in split searches. The surrogate rules are just meant to give users more flexibility for how to handle missing values.
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