Re: [xsl] sum of products

Subject: Re: [xsl] sum of products
From: David Carlisle <davidc@xxxxxxxxx>
Date: Wed, 10 Oct 2001 11:35:58 +0100
> How do you write the xpath to calculate the sum or a*b for the

this is a faq.

You can not do it in a single xpath.

easiest is to generate a result tree fragment with the list of products

<xsl:variable name="x">
 <xsl:for-each select="item/data[@id=2]">
  <x><xsl:value-of select="a * b"/></x>
 </xsl:for-each>
</xsl:variable>

then use your processors node-set() extension to sum

<xsl:value-of select="sum(xx:node-set($x)/x"/>

David

_____________________________________________________________________
This message has been checked for all known viruses by Star Internet
delivered through the MessageLabs Virus Scanning Service. For further
information visit http://www.star.net.uk/stats.asp or alternatively call
Star Internet for details on the Virus Scanning Service.

 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list


Current Thread