RE: [xsl] Calculation of Minimum or Maximum value of an element

["Michael Kay" <michael.h.kay@xxxxxxxxxxxx>]

Here are four techniques you can use:

1. Use the XPath expression

       A[not(../A < .)]
   which finds all A elements that have no other A whose value is
smaller. This expression has quadratic performance.

2. Sort the list and (using the xx:node-set() extension) select the
first or last in sorted order. This has (n log n) performance.

3. Use a recursive template. This has linear performance.

4. Use a library routine, such as the EXSLT min() function: see
www.exslt.org.

Michael Kay
Software AG
home: Michael.H.Kay@xxxxxxxxxxxx
work: Michael.Kay@xxxxxxxxxxxxxx 

> -----Original Message-----
> From: owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx 
> [mailto:owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of 
> Chitra Lalita Madhwacharyula
> Sent: 12 November 2002 01:46
> To: XSL-List@xxxxxxxxxxxxxxxxxxxxxx
> Subject: [xsl] Calculation of Minimum or Maximum value of an element
> 
> 
> 
> 	Hello,
> 
> 	Can anyone please tell me how to calculate the minimum or
> maximum values of a set of nodes and display them using 	XSLT ?
> 	For e.g if I have
> 	<A>300</A>
> 	<A>250</A>
> 	<A>900</A>
> 	How can I write a template or a function which 
> calculates the least A element value and displays it ???
> 
> 	Thanx,
> 	Chitra
> 
>  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
> 
> 


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