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Re: Re: using keys for counting not sorting

Subject: Re: Re: using keys for counting not sorting
From: "Ahmad J. Reeves" <ahmad@xxxxxxxxxxxxxx>
Date: Mon, 31 Dec 2001 18:47:11 +0000
thanksgiving sales near 60060
Many thanks Dimitre for your excellent answer. I'm going through
your solution to make sure I understand how it works correctly,

Cheers

Ahmad

At 12:19 AM 12/30/01 -0800, you wrote:
>Oopps...
>
>In my previous message I didn't take into account "characters" that only
received
>messages, but didn't send any.
>
>Here's the now correct solution:
>
><xsl:stylesheet version="1.0" 
>xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
>
>  <xsl:output method="text"/>
>  
>  <xsl:key name="kByID" match="DIRECT" use="CHARACTER_ID"/>
>  <xsl:key name="kByTargetID" match="TARGET_CHARACTER_ID" use="."/>
>  
>    <xsl:variable name="vUniqueCharactersSending" 
>                  select="LOG/DIRECT[generate-id() 
>                                    = 
>                                     generate-id(key('kByID',
>                                                      CHARACTER_ID
>                                                     )[1]
>                                                 )
>                                    ]"/>
>                                    
>    <xsl:variable name="vUniqueCharactersReceiving" 
>                  select="LOG/DIRECT/TARGET_CHARACTER_ID
>                                  [generate-id() 
>                                    = 
>                                     generate-id(key('kByTargetID',
>                                                      .
>                                                     )[1]
>                                                 )
>                                    ]"/>
>                                    
>    <xsl:variable name="vNumCharactersSending" 
>                  select="count($vUniqueCharactersSending)"/>
>    
>    <xsl:variable name="vNumCharactersReceiving" 
>                  select="count($vUniqueCharactersReceiving)"/>
>    
>    <xsl:variable name="vTotalSent"
>                  select="count(LOG/DIRECT/CHARACTER_ID)"/>
>                  
>    <xsl:variable name="NL" select="'&#xA;'"/>
>    
>  <xsl:template match="/">
>    <xsl:for-each select="$vUniqueCharactersSending">
>      <xsl:value-of select="concat('CHARACTER_ID ',CHARACTER_ID,
>                                   ' sent ',
>                                   count(key('kByID',CHARACTER_ID)),
>                                   ' messages, received ',
>                                   count(key('kByTargetID',CHARACTER_ID)),
>                                   $NL
>                                   )"/>
>    </xsl:for-each>
>    
>    <xsl:for-each select="$vUniqueCharactersReceiving
>                                     [not(key('kByID', .))]">
>    
>      <xsl:value-of select="concat('CHARACTER_ID ', .,
>                                   ' sent 0 messages, received ',
>                                   count(key('kByTargetID',.)),
>                                   $NL
>                                   )"/>
>    </xsl:for-each>
>    
>    <xsl:value-of select="$NL"/>
>    <xsl:value-of select="concat('Number of characters having sent a
message: ',
>                                  $vNumCharactersSending,
>                                  $NL
>                                  )"/>
>    
>    <xsl:value-of select="concat('Number of characters having received a
message: ',
>                                  $vNumCharactersReceiving,
>                                  $NL
>                                  )"/>
>    
>    <xsl:value-of select="$NL"/>
>    <xsl:value-of select="concat('Total sent: ',
>                                  $vTotalSent,
>                                  ', Average sent by a sending character: ',
>                                  $vTotalSent div $vNumCharactersSending,
>                                  '&#xA;',
>                                  
>                                  'Total received: ',
>                                   $vTotalSent,
>                                  ', Average received by a receiving
character: ',
>                                  $vTotalSent div $vNumCharactersReceiving,
>                                  '&#xA;'
>                                  
>                                 )"/>
>  </xsl:template>
></xsl:stylesheet>
>
>When this is applied to the following xml sorce document:
>
><LOG>
>  <DIRECT>
>    <COMMUNICATION_TYPE>PAGETELL</COMMUNICATION_TYPE>
>    <Invoc_serial>27</Invoc_serial>
>    <Serial>3087908</Serial>
>    <USAGE>TELL</USAGE>
>    <MESSAGE_TYPE>EMOTE</MESSAGE_TYPE>
>    <CHARACTER_ID>10010</CHARACTER_ID>
>    <CHARACTER_STATUS>3</CHARACTER_STATUS>
>    <LOCATION_ID>45040</LOCATION_ID>
>    <TARGET_CHARACTER_ID>444444</TARGET_CHARACTER_ID>
>    <TARGET_CHARACTER_STATUS>6</TARGET_CHARACTER_STATUS>
>    <TARGET_CHARACTER_LOCATION_ID>23222</TARGET_CHARACTER_LOCATION_ID>
>    <MESSAGE>hello</MESSAGE>
>    <TIME>'Mon, 26 Nov 2001 15:40:29 +0000'</TIME>
>  </DIRECT>
>
>  <DIRECT>
>    <COMMUNICATION_TYPE>PAGETELL</COMMUNICATION_TYPE>
>    <Invoc_serial>27</Invoc_serial>
>    <Serial>3087908</Serial>
>    <USAGE>TELL</USAGE>
>    <MESSAGE_TYPE>EMOTE</MESSAGE_TYPE>
>    <CHARACTER_ID>10010</CHARACTER_ID>
>    <CHARACTER_STATUS>3</CHARACTER_STATUS>
>    <LOCATION_ID>45040</LOCATION_ID>
>    <TARGET_CHARACTER_ID>444444</TARGET_CHARACTER_ID>
>    <TARGET_CHARACTER_STATUS>6</TARGET_CHARACTER_STATUS>
>    <TARGET_CHARACTER_LOCATION_ID>23222</TARGET_CHARACTER_LOCATION_ID>
>    <MESSAGE>hello</MESSAGE>
>    <TIME>'Mon, 26 Nov 2001 15:40:29 +0000'</TIME>
>  </DIRECT>
>
>  <DIRECT>
>    <COMMUNICATION_TYPE>PAGETELL</COMMUNICATION_TYPE>
>    <Invoc_serial>27</Invoc_serial>
>    <Serial>3087908</Serial>
>    <USAGE>TELL</USAGE>
>    <MESSAGE_TYPE>EMOTE</MESSAGE_TYPE>
>    <CHARACTER_ID>444444</CHARACTER_ID>
>    <CHARACTER_STATUS>3</CHARACTER_STATUS>
>    <LOCATION_ID>45040</LOCATION_ID>
>    <TARGET_CHARACTER_ID>10010</TARGET_CHARACTER_ID>
>    <TARGET_CHARACTER_STATUS>6</TARGET_CHARACTER_STATUS>
>    <TARGET_CHARACTER_LOCATION_ID>23222</TARGET_CHARACTER_LOCATION_ID>
>    <MESSAGE>hello</MESSAGE>
>    <TIME>'Mon, 26 Nov 2001 15:40:29 +0000'</TIME>
>  </DIRECT>
>
>  <DIRECT>
>    <COMMUNICATION_TYPE>PAGETELL</COMMUNICATION_TYPE>
>    <Invoc_serial>27</Invoc_serial>
>    <Serial>3087908</Serial>
>    <USAGE>TELL</USAGE>
>    <MESSAGE_TYPE>EMOTE</MESSAGE_TYPE>
>    <CHARACTER_ID>50050</CHARACTER_ID>
>    <CHARACTER_STATUS>3</CHARACTER_STATUS>
>    <LOCATION_ID>45040</LOCATION_ID>
>    <TARGET_CHARACTER_ID>60060</TARGET_CHARACTER_ID>
>    <TARGET_CHARACTER_STATUS>6</TARGET_CHARACTER_STATUS>
>    <TARGET_CHARACTER_LOCATION_ID>23222</TARGET_CHARACTER_LOCATION_ID>
>    <MESSAGE>hello</MESSAGE>
>    <TIME>'Mon, 26 Nov 2001 15:40:29 +0000'</TIME>
>  </DIRECT></LOG>
>
>The result is:
>
>CHARACTER_ID 10010 sent 2 messages, received 1
>CHARACTER_ID 444444 sent 1 messages, received 2
>CHARACTER_ID 50050 sent 1 messages, received 0
>CHARACTER_ID 60060 sent 0 messages, received 1
>
>Number of characters having sent a message: 3
>Number of characters having received a message: 3
>
>Total sent: 4, Average sent by a sending character: 1.3333333333333332
>Total received: 4, Average received by a receiving character:
1.3333333333333332
>
>
>Cheers,
>Dimitre.
>
>__________________________________________________
>Do You Yahoo!?
>Send your FREE holiday greetings online!
>http://greetings.yahoo.com
>
> XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
>
>
-------------------------------------------------
Ahmad J Reeves BSc (Hons) MSc (Dist) PhD Student
Information, Media & Communication Research Group
Department of Computer Science
Queen Mary, University of London
E1 4NS
Tel +44(0) 207 882 5257
Fax +44(0) 208 980 6533
http://www.dcs.qmw.ac.uk/imc

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


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