Re: how to do set operations (intersection, unify, re
the set operations, union etx work on sequences of nodes, using node identity so are nit what you want here as you have sequences of strings. Yor description is not at all clear, but if you have two sequences of strings $a and $b and want the sequence of strings common to both then that is $a[.=$b] the sequence of strings in $a but not in $b is $a[not(.=$b)] David ________________________________________________________________________ The Numerical Algorithms Group Ltd is a company registered in England and Wales with company number 1249803. The registered office is: Wilkinson House, Jordan Hill Road, Oxford OX2 8DR, United Kingdom. This e-mail has been scanned for all viruses by Star. The service is powered by MessageLabs. ________________________________________________________________________
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