RE: Unique set values

["Carlos Sanchez" <carlos@xxxxxxxx>]

Mike,

I am currently working w/ XALAN and I have implemented the following using a
java extension. It does what I want, however, I am not quite happy as I had
to use java. Do you have any suggestion?

Thx,

Carlos

<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
    		xmlns:java="http://xml.apache.org/xslt/java";
    		exclude-result-prefixes="java"
		version="1.0">>

  <!-- Set output method -->
  <xsl:output method="xml" indent="yes"/>
  <xsl:variable name="tuple-hash" select="java:java.util.Hashtable.new()"/>

  <xsl:template match="/">
    <statistics>
    <xsl:for-each select="/results/statResults/statResult">
      <xsl:sort select="methodology"/>
      <xsl:sort select="statName"/>
      <xsl:sort select="parameter"/>

      <xsl:variable name="tuple">
	<xsl:value-of select="methodology"/>*<xsl:value-of
select="statName"/>:<xsl:value-of select="parameter"/>
      </xsl:variable>

      <xsl:variable name="proc"
select="java:containsKey($tuple-hash,string($tuple))"/>

      <!-- Check if node has already been processed -->
      <xsl:if test="(string($proc) != 'true')">
         <!-- Add node to hash -->
         <xsl:variable name="nId" select="generate-id(.)"/>
         <xsl:variable name="tmp" select="java:put($tuple-hash,
string($tuple), $nId)"/>

         <statistic>
           <statName><xsl:value-of select="statName"/></statName>
           <parameter><xsl:value-of select="parameter"/></parameter>
           <methodology><xsl:value-of select="methodology"/></methodology>
         </statistic>
      </xsl:if>
    </xsl:for-each>
    </statistics>
  </xsl:template>



-----Original Message-----
From: owner-xsl-list@xxxxxxxxxxxxxxxx
[mailto:owner-xsl-list@xxxxxxxxxxxxxxxx]On Behalf Of Kay Michael
Sent: Tuesday, June 13, 2000 4:43 AM
To: 'xsl-list@xxxxxxxxxxxxxxxx'
Subject: RE: Unique set values


> I want to be able to return unique 3-tuple value consisting
> of methodology, statName, and parameter. That is

Take a look in the Dave Pawson FAQ under sorting and grouping.

Mike Kay


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

-----Original Message-----
From: owner-xsl-list@xxxxxxxxxxxxxxxx
[mailto:owner-xsl-list@xxxxxxxxxxxxxxxx]On Behalf Of Carlos Sanchez
Sent: Tuesday, June 12, 2000 4:45 PM
To: 'xsl-list@xxxxxxxxxxxxxxxx'
Subject: Unique set values

Hi I have the following XML

<statResults>
 <statResult>
   <valSpecId>1</valSpecId>
   <methodology>parametric</methodology>
   <statName>ConditionalMean</statName>
   <parameter>0.05</parameter>
   <result>-0.951696710686655</result>
 </statResult>
 <statResult>
  <valSpecId>2</valSpecId>
  <methodology>parametric</methodology>
  <statName>ConditionalMean</statName>
  <parameter>0.05</parameter>
  <result>-219.796643247407</result>
  </statResult>
  <statResult>
  <valSpecId>1</valSpecId>
  <methodology>parametric</methodology>
  <statName>ConditionalMean</statName>
  <parameter>0.07</parameter>
  <result>-219.796643247407</result>
 </statResult>
 <statResult>
  <valSpecId>2</valSpecId>
  <methodology>parametric</methodology>
  <statName>ConditionalMean</statName>
  <parameter>0.07</parameter>
  <result>-219.787907827418</result>
 </statResult>
 <statResult>
  <valSpecId>2</valSpecId>
  <methodology>parametric</methodology>
  <statName>VaR</statName>
  <parameter>0.97</parameter>
  <result>3.26</result>
 </statResult>
  ...

I want to be able to return unique 3-tuple value consisting of methodology,
statName, and parameter. That is

 <statResult>
  <methodology>parametric</methodology>
  <statName>ConditionalMean</statName>
  <parameter>0.05</parameter>
 <statResult>
 <statResult>
  <methodology>parametric</methodology>
  <statName>ConditionalMean</statName>
  <parameter>0.07</parameter>
 <statResult>
 <statResult>
  <methodology>parametric</methodology>
  <statName>VaR</statName>
  <parameter>0.97</parameter>
 <statResult>

Thx,

Carlos Sanchez
The RiskMetrics Group


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


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