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Count unique values using XSLT
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Subject:
Count unique values using XSLT
Author:
Fred Foo
Date:
07 Jul 2010 07:45 AM
Originally Posted: 07 Jul 2010 07:43 AM
Hi,
I have (what should be) a simple XSLT problem. How can I count nodes with a unique value, and sort into some sequence?
Here's my simple example:
<root>
<cust>
<lastname>smith</lastname>
<firstname>bob</firstname>
</cust>
<cust>
<lastname>smith</lastname>
<firstname>joe</firstname>
</cust>
<cust>
<lastname>brown</lastname>
<firstname>joe</firstname>
</cust>
<cust>
<lastname>smith</lastname>
<firstname>pete</firstname>
</cust>
</root>
Here's what I'm hoping to see:
brown 1
smith 3
In other words, I want to see how many customers have each lastname, sorted alphabetically ascending.
Thanks
next
Subject:
Count unique values using XSLT
Author:
Ivan Pedruzzi
Date:
08 Jul 2010 11:17 AM
Tipical grouping problem
Ivan Pedruzzi
Stylus Studio Team
keys_XSLT_1.xsl
keys_XSLT_2.xsl
top
Subject:
Count unique values using XSLT
Author:
Fred Foo
Date:
11 Jul 2010 11:50 PM
Many thanks. For others reference, this is the code I ended up going with:
<xsl:key name="custs-by-lastname" match="cust" use="lastname"/>
<xsl:template match="/">
<html>
<body>
<xsl:for-each select="/root/cust[count(. | key('custs-by-lastname', lastname)[1]) = 1]">
<xsl:sort select="lastname"/>
<table border="1">
<tr>
<td>
<xsl:value-of select="lastname"/>
</td>
<td>
<xsl:value-of select="count(key('custs-by-lastname', lastname))"/>
</td>
</tr>
</table>
</xsl:for-each>
</body>
</html>
</xsl:template>
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