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Problem with obtaining distinct values from a variable

Subject: Problem with obtaining distinct values from a variable containg a nodeset
From: "Ian E. Powell" <Ian.Powell@xxxxxxxxxxxxx>
Date: Tue, 29 Nov 2005 08:46:11 -0600
distinct values to variable
I have a nagging problem with a nodeset variable. I have a parameter
"$services" that I iterate through. This is a nodeset that I pass into
the stylesheet.

I can have repetitive values in this nodeset and want to remedy this
situation. I have tried using sibling elemination and couldn't see a way
to apply grouping. I am always getting an invalid xpath error.

How would I go about getting distinct values from the single parameter



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