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Subject: [xsl] Re: distinct moves problem From: Dimitre Novatchev <dnovatchev@xxxxxxxxx> Date: Mon, 7 Jan 2002 07:51:50 -0800 (PST) |
Ahmad J Reeves <ahmad at dcs dot qmul dot ac dot uk> wrote:
> Just wanted to say thanks once again for helping
> questions. This is the best list I've seen for
> genral helpfulness and good things!
>
> Just a quick question, with the same data..
>
> <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>
>
> etc etc 50,000 or so times
> </LOG>
>
> I also need to track the movement of a character. So
> for example I know that a certain character_id has
> been in say 25 rooms of which 9 were unique, but
> I cant see how I can work out the number of distinct moves he makes
> using xsl.
>
> So I can get output like this:-
>
> Ch-ID in-room Message Target-ID time
> 23470 45040 Hello 12345 10:19
> 23470 43333 Hi 23432 10:23
> 23470 45040 Yo 43333 10:44
>
> etc..
> etc..
>
> This tells me he was in a total of three rooms of which
> 2 were unique AND he has made 2 MOVES so far. So I need
> to work out the total number of distinct moves per character-ID,
> with a total and average for all of them.
Hi Ahmad,
This problem is built upon the previous one for which you already have the solution:
http://sources.redhat.com/ml/xsl-list/2001-12/msg01127.html
To calculate the number of distinct rooms a "character" has been in, you can add to
the solution the following:
<xsl:key name="kLocByCharacter"
match="LOCATION_ID"
use="../CHARACTER_ID"/>
<xsl:key name="kLocByValandChar"
match="LOCATION_ID"
use="concat(., '|', ../CHARACTER_ID)"/>
The first key gives all "LOCATION_ID"s (rooms) for a "character".
The second key gives all "LOCATION_ID"s (rooms) that have a given combination of
values for a "LOCATION_ID" (room) and the "character" that was there.
In order to get a list of distinct characters and for each of them a list of
distinct rooms, add this code at the end of the template:
<xsl:for-each select="$vUniqueCharactersSending">
<xsl:value-of select="concat('Character_ID: ',
CHARACTER_ID,
':',
$NL
)"/>
<xsl:for-each select="key('kLocByCharacter',CHARACTER_ID)
[generate-id()
=
generate-id(key('kLocByValandChar',
concat(.,
'|',
current()/CHARACTER_ID
)
)[1]
)
]">
<xsl:value-of select="concat(' ', ., $NL)"/>
</xsl:for-each>
</xsl:for-each>
The complete stylesheet will now be:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="text"/>
<xsl:key name="kByID" match="DIRECT" use="CHARACTER_ID"/>
<xsl:key name="kByTargetID" match="TARGET_CHARACTER_ID" use="."/>
<xsl:key name="kLocByCharacter"
match="LOCATION_ID"
use="../CHARACTER_ID"/>
<xsl:key name="kLocByValandChar"
match="LOCATION_ID"
use="concat(., '|', ../CHARACTER_ID)"/>
<xsl:variable name="vUniqueCharactersSending"
select="LOG/DIRECT[generate-id()
=
generate-id(key('kByID',
CHARACTER_ID
)[1]
)
]"/>
<xsl:variable name="vUniqueCharactersReceiving"
select="LOG/DIRECT/TARGET_CHARACTER_ID
[generate-id()
=
generate-id(key('kByTargetID',
.
)[1]
)
]"/>
<xsl:variable name="vNumCharactersSending"
select="count($vUniqueCharactersSending)"/>
<xsl:variable name="vNumCharactersReceiving"
select="count($vUniqueCharactersReceiving)"/>
<xsl:variable name="vTotalSent"
select="count(LOG/DIRECT/CHARACTER_ID)"/>
<xsl:variable name="NL" select="'
'"/>
<xsl:template match="/">
<xsl:for-each select="$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,
'
',
'Total received: ',
$vTotalSent,
', Average received by a receiving character: ',
$vTotalSent div $vNumCharactersReceiving,
'
'
)"/>
<xsl:value-of select="$NL"/>
<xsl:value-of select="concat('Room moves by character:', $NL)"/>
<xsl:for-each select="$vUniqueCharactersSending">
<xsl:value-of select="concat('Character_ID: ',
CHARACTER_ID,
':',
$NL
)"/>
<xsl:for-each select="key('kLocByCharacter',CHARACTER_ID)
[generate-id()
=
generate-id(key('kLocByValandChar',
concat(.,
'|',
current()/CHARACTER_ID
)
)[1]
)
]">
<xsl:value-of select="concat(' ', ., $NL)"/>
</xsl:for-each>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>
When this transformation is applied upon the following source xml 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>10010</CHARACTER_ID>
<CHARACTER_STATUS>3</CHARACTER_STATUS>
<LOCATION_ID>45020</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>45010</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>444444</CHARACTER_ID>
<CHARACTER_STATUS>3</CHARACTER_STATUS>
<LOCATION_ID>45030</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>444444</CHARACTER_ID>
<CHARACTER_STATUS>3</CHARACTER_STATUS>
<LOCATION_ID>45030</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>45000</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 3 messages, received 3
CHARACTER_ID 444444 sent 3 messages, received 3
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: 7, Average sent by a sending character: 2.3333333333333335
Total received: 7, Average received by a receiving character: 2.3333333333333335
Room moves by character:
Character_ID: 10010:
45040
45020
Character_ID: 444444:
45010
45030
Character_ID: 50050:
45000
Hope that this really helped.
Cheers,
Dimitre Novatchev.
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