Counting unique elements is a simple example of the grouping problem. Read
about grouping in XSLT 1.0 at http://www.jenitennison.com/xslt/grouping

Michael Kay
http://www.saxonica.com/ 

> -----Original Message-----
> From: Kirov Plamen [mailto:pkirov@xxxxxxxxx] 
> Sent: 24 November 2006 09:05
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject:  Count of unique elements [XSLT 1.0]
> 
> Hi all,
> 
> The XML:
> 
> 	<product>
> 		<prodid>V667320</prodid>
> 		<name>Battery Pack</name>
> 		<price>$20</price>
> 		<quantity>178</quantity>
> 		<region>SouthWest</region>
> 	</product>
> 	<product>
> 		<prodid>M382932</prodid>
> 		<name>CD Visor Organizer</name>
> 		<price>$19</price>
> 		<quantity>129</quantity>
> 		<region>NorthWest</region>
> 	</product>
> 	<product>
> 		<prodid>U3923839</prodid>
> 		<name>Rock n Roll Supercart</name>
> 		<price>$150</price>
> 		<quantity>200</quantity>
> 		<region>SouthWest</region>
> 	</product>
> 	<product>
> 		<prodid>Q3929302</prodid>
> 		<name>Digital Tire Guage</name>
> 		<price>$40</price>
> 		<quantity>623</quantity>
> 		<region>NorthWest</region>
> 	</product>
> 
> I want to count the unique elements 'region' into XML. In 
> this example the count result must be "2" - there's two 
> unique 'region': NorthWest and SouthWest.
> 
> Any help is appreciated.
> 
> BR
> Plamen