st: duplicates tagged, but list is not limited to unique values

[Michael McCulloch <mm@pinest.org>]

I would like to tag and display duplicate values of 4 variables. This works 
if I DROP duplicates, but not if I TAG them. I'd like to be able to keep my 
data! Am I doing the DUPLICATES incorrectly, or the LIST?

***TAG METHOD
.sort var1 var2 var3 var4
.duplicates tag var1 var2 var3 var4, generate(tag)
.list var1 var2 var3 var4 tag if tag, noobs

var1    var2    var3    var4            tag
3       no      yes     .8571423        52
3       no      yes     .8571423        52
3       no      yes     .8571423        52
3       no      yes     .8571423        52
3       no      yes     .8571423        52

***DROP METHOD
.duplicates drop var1   var2    var3    var4, force
.list var1      var2    var3    var4 tag if &tag, clean noobs

var1    var2    var3    var4            tag
3       no      yes     .8571423        52
3       yes     yes     .5784351        12
4       no      yes     .7797139        70
5       no      yes     .6761742        21





Best wishes,
Michael


____________________________________

Michael McCulloch
Pine Street Clinic
124 Pine Street, San Anselmo, CA 94960-2674
tel     415.407.1357
fax     415.485.1065
email:  mm@pinest.org
web:    www.pinest.org
        www.pinestreetfoundation.org





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