Re: [xsl] How to sort attributes to find min and max?

It has been basically answered previously, but I wanted to test the  
beauty of Kernow's XSLT playground feature and also train a little  
bit xsl:function. So with XSLT 2.0 you could create
   <xsl:function name="f:extreme" as="xs:integer">
      <xsl:param name="context"/>
      <xsl:param name="mode"/>
      <xsl:param name="label"/>
      <xsl:variable name="order" select="if ($mode = 'min') then  
'ascending' else 'descending'"/>
      <xsl:for-each select="$context/*[(_at_)label=$label]">
          <xsl:sort select="@time" data-type="number" order="{$order}"/>
          <xsl:if test="position() = 1">
                    <xsl:value-of select="@time"/>
                </xsl:if>
        </xsl:for-each>
   </xsl:function>

The results can then be retrieved using calls like:

 <xsl:value-of select="f:extreme(., 'min', 'Init')"/>
 <xsl:value-of select="f:extreme(., 'max', 'Init')"/>

- Michael

PS: I am sure one could spend less lines.


Am 22.03.2008 um 03:28 schrieb Z W:
> Hi
>
>
> How do I to find min and max of an attribute based on another
> attribute ?
> My select below doesn't seem to work and causing jvm to run out of
> memory.
> <xsl:value-of select="document($previousJTL)/Results/*[(_at_)label =
> 'Init']/@time" />
>
>
> Ideally, I like to be able to get min and max for each message.
> In this case,
> Init min is 235, max is 2345
> Update min is 2043, max is 2043
>
>
> Seek some help.
> Any help is appreciated.
>
>
> Input file
> <?xml version="1.0" encoding="UTF-8"?>
> <Results version="1.2">
>
>
> <sampleResult timeStamp="1205507229423" label="Init" time="2133"
> responseMessage="OK" responseCode="200" success="true"/>
> <sampleResult timeStamp="1205507229265" label="Init" time="2345"
> responseMessage="OK" responseCode="200" success="true"/>
> <sampleResult timeStamp="1205507229539" label="Update Process"
> time="2043" responseMessage="OK" responseCode="200" success="true"/>
> <sampleResult timeStamp="1205507229639" label="Update Process"
> time="2043" responseMessage="OK" responseCode="200" success="true"/>
> <sampleResult timeStamp="1205507229765" label="Init" time="235"
> responseMessage="OK" responseCode="200" success="true"/>
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