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Re: Get minimum value for nodes with a given attribute value

From: Martin Honnen <mahotrash@-----.-->
To: NULL
Date: 1/2/2007 4:16:00 PM

Darren.Ratcliffe@g... wrote:

> If my xml were structured like this:
> 
> <hotels>
> <hotel rating="2*" price="123.00" />
> <hotel rating="2*" price="125.00" />
> <hotel rating="1*" price="100.00" />
> <hotel rating="4*" price="180.00" />
> </hotels>

Here is an example, the XML
<http://home.arcor.de/martin.honnen/xslt/test2007010201.xml>
the stylesheet showing two different ways to find the minimum:
<http://home.arcor.de/martin.honnen/xslt/test2007010201Xsl.xml>
One way is as already suggested to sort with xsl:sort on @price and to 
output only the first element in the sort.
The other way uses an XPath alike
/hotels/hotel[@rating = '2*][not(@price > /hotels/hotel[@rating = 
'2*]/@price])]/@price

You might also want to look into
<http://www.exslt.org/math/functions/min/index.html>
the EXSLT implementation of a math:min template (and math:min extension 
function).
-- 

	Martin Honnen --- MVP XML
	http://JavaScript.FAQTs.com/

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