How do I create a tagging (DelinquentTag) variable based on that 3 variables across time. Example: Data: Date Accno Delinquent DelinquentTag 30Nov2011 123 0 N 31Dec2011 123 1 Y 31Jan2012 123 0 Y 30Nov2011 234 0 N 31Dec2011 234 0 N 30Nov2011 235 1 Y 31Dec2011 235 1 Y Regards, xchoit
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