計算出XSLT價格的平均值

Question

我有點卡住了我的XSLT，我正在計算如何計算出我所有汽車廣告的XSLT平均價格。

所以我有這個XML

<?xml version="1.0" encoding="UTF-8"?> 
<?xml-stylesheet type="text/xsl" href="Uppgift3.xsl"?> 
<autoads> 
    <ad> 
     <type>1</type> 
     <name>Honda</name> 
     <model>XL 1000 V</model> 
     <regyear>2001</regyear> 
     <price>129900</price> 
     <adtext>2001 Honda XL 1000 V, 8.900 km. hög vindruta. Pris 129.900kr,-. </adtext> 
     <addate>20020115</addate> 
     <volume>1000</volume> 
     <category></category> 
    </ad> 
    <ad> 
     <type>2</type> 
     <name>Nissan</name> 
     <model>Almera 1.4S</model> 
     <regyear>1997</regyear> 
     <price>119000</price> 
     <adtext>1997 Nissan Almera 1.4S, 5 dörrar, met, 70.000 km. el.spegel/fönster, galv. kaross, c.lås, startspärr, airbag, nedfällb. baks. ABS, ute temp. R/CD, alarm, d.fäste, v.säten, s/v-hj. EU-godk. full service, servo. Pris 119.000 kr,-. </adtext> 
     <addate>20020118</addate> 
     <volume>0</volume> 
     <category>5 dörrar</category> 
    </ad> 
    <ad> 
     <type>2</type> 
     <name>Mercedes-Benz</name> 
     <model>C220 Elegance</model> 
     <regyear>1995</regyear> 
     <price>209000</price> 
     <adtext>1995 Mercedes-Benz C220 Elegance, 4 dörrar, 88.000 km. skinn, klima/automatic, cruise, el.spegel/fönster, alu.fälgar, c.lås, airbag, antispinn, ABS, ute temp, radio, s/v-hjul, servo, creme skinn. automat. Pris 209.000 kr,-. </adtext> 
     <addate>20020118</addate> 
     <volume>0</volume> 
     <category>4 dörrar</category> 
    </ad> 
    <ad> 
     <type>2</type> 
     <name>Audi</name> 
     <model>S8</model> 
     <regyear>2000</regyear> 
     <price>850000</price> 
     <adtext>2000 Audi S8, 4 dörrar, 40.000 km. 4x4, Tiptronic-aut., klimataut., ABS, el.fönster/speglar/säten, soltak, c.lås, servo, airbag, startspärr, antispinn, cruise., alu., träinred., sort skinn, mitttarmstöd., sportssäten, stereo, alarm, s/v-hjul, dragkrok, 17"+18"alu. Pris 850.000 kr,-. </adtext> 
     <addate>20020118</addate> 
     <volume>0</volume> 
     <category>4 dörrar</category> 
    </ad> 
    <ad> 
     <type>1</type> 
     <name>Yamaha</name> 
     <model>Thunderace 1000</model> 
     <regyear>2000</regyear> 
     <price>130000</price> 
     <adtext>2000 Yamaha Thunderace 1000, 11.500 km. Röd/Silver,tankväska medföljer. 146hk Pris kan diskuteras vid snabb affär. Pris 130.000 kr,-. </adtext> 
     <addate>20020116</addate> 
     <volume>1000</volume> 
     <category></category> 
    </ad> 
    <ad> 
     <type>2</type> 
     <name>Audi</name> 
     <model>A4 1.6</model> 
     <regyear>2000</regyear> 
     <price>260000</price> 
     <adtext>2000 Audi A4 1.6, 4 dörrar, 78.000 km. el.fönster, ABS, alu. airbag, , klima, ESP, navig. plus, TV, evt. inbyte, power box (+30 HK) medföljer. Pris 260.000 kr,-. </adtext> 
     <addate>20020117</addate> 
     <volume>0</volume> 
     <category>4 dörrar</category> 
    </ad> 
    <ad> 
     <type>2</type> 
     <name>Jeep</name> 
     <model>Grand Cherokee 2.5TD</model> 
     <regyear>0</regyear> 
     <price>359000</price> 
     <adtext>0 Jeep Grand Cherokee 2.5TD, Stv., 38.000 km. A/C, el.fönster/spegel, 8xalu., c.lås, airbag, R/CD, s/v-hjul, servo. Pris 359.000 kr,-. </adtext> 
    </ad> 
    <ad> 
     <type>1</type> 
     <name>Suzuki</name> 
     <model>TL 1000 R</model> 
     <regyear>1998</regyear> 
     <price>110000</price> 
     <adtext>1998 Suzuki TL 1000 R, 8400 km. Pris 110.000 kr,-. </adtext> 
     <addate>20020116</addate> 
     <volume>1000</volume> 
     <category></category> 
    </ad> 
    <ad> 
     <type>2</type> 
     <name>Volkswagen</name> 
     <model>Golf 1.8 Pink Floyd</model> 
     <regyear>1994</regyear> 
     <price>85000</price> 
     <adtext>1994 Volkswagen Golf 1.8 Pink Floyd, 4 dörrar, 135.600 km. Eu-godkänd, airbag, el.taklucka, just ratt, metallic, radio/CD/Kass, s/v-hjul, servicebok, servo, stereo. Fullständig service, 1 ägare, 6 högtalare. Pris 85.000 kr,-. </adtext> 
     <addate>20020115</addate> 
     <volume>0</volume> 
     <category>4 dörrar</category> 
    </ad> 
    <ad> 
     <type>2</type> 
     <name>Volvo</name> 
     <model>850 2.0 LT</model> 
     <regyear>1997</regyear> 
     <price>245490</price> 
     <adtext>1997 Volvo 850 2.0 LT, Stv., 122785 km. halvskinn, el.spegel/fönster/soltak, fj.c.lås, st.spärr, airbag, just.ratt, rails, nedf.baksäte, m.armstöd, ABS, rad/kass, alarm, dragkrok, s/v-hjul, f.glass, met, garanti, servo. Pris 245.490 kr,-. </adtext> 
    </ad> 
    <ad> 
     <type>2</type> 
     <name>Audi</name> 
     <model>A3 1.6 Ambition</model> 
     <regyear>1998</regyear> 
     <price>180000</price> 
     <adtext>1998 Audi A3 1.6 Ambition, 3 dörrar, 88.000 km. s/v-hj. el.fönster, ABS, f.glass, alu. c.lås, servo, airbag, rökfri, stilig bil. Pris 180.000 kr,-. </adtext> 
     <addate>20020117</addate> 
     <volume>0</volume> 
     <category>3 dörrar</category> 
    </ad> 
    <ad> 
     <type>1</type> 
     <name>BMW</name> 
     <model>K 1200 RS</model> 
     <regyear>2000</regyear> 
     <price>195000</price> 
     <adtext>2000 BMW K 1200 RS, 4.000 km. sidoväskor, bagagefästen. Pris 195.000 kr,-. </adtext> 
     <addate>20020116</addate> 
     <volume>1200</volume> 
     <category></category> 
    </ad> 
    <ad> 
     <type>2</type> 
     <name>Suzuki</name> 
     <model>Baleno 1.6 GLX</model> 
     <regyear>1999</regyear> 
     <price>175000</price> 
     <adtext>1999 Suzuki Baleno 1.6 GLX, Stv., 49.500 km. A/C, el.fönster/speil, c.lås, airbag, rails, ABS, stereo, , servo. Pris 175.000 kr,-. </adtext> 
    </ad> 
    <ad> 
     <type>1</type> 
     <name>Suzuki</name> 
     <model>LS 650 Savage</model> 
     <regyear>1987</regyear> 
     <price>29000</price> 
     <adtext>1987 Suzuki LS 650 Savage, röd. Pris 29.000 kr,-. </adtext> 
     <addate>20020116</addate> 
     <volume>650</volume> 
     <category></category> 
    </ad> 
    <ad> 
     <type>1</type> 
     <name>Suzuki</name> 
     <model>GS 500 E</model> 
     <regyear>1993</regyear> 
     <price>31900</price> 
     <adtext>1993 Suzuki GS 500 E. Pris 31.900,-. </adtext> 
     <addate>20020117</addate> 
     <volume>500</volume> 
     <category></category> 
    </ad> 
    <ad> 
     <type>2</type> 
     <name>BMW</name> 
     <model>520 i</model> 
     <regyear>2000</regyear> 
     <price>387000</price> 
     <adtext>2000 BMW 520 i, Stv., 52.600 km. Skinn, klima, m.f.ratt, el.spegel/fönster, alu.fälgar, c.lås, airbag x 6, antispinn, rails, träint, ABS, rad/cd, alarm, dragkrok, met, servo, Pris 387.000 kr,-. </adtext> 
    </ad> 
    <ad> 
     <type>1</type> 
     <name>Triumph</name> 
     <model>Daytona T 595</model> 
     <regyear>1997</regyear> 
     <price>115000</price> 
     <adtext>1997 Triumph Daytona T 595, 13.000 km. Är som ny, karbon anlägg, nya däck, extra tank. Pris 115.000 kr,-. </adtext> 
     <addate>20020115</addate> 
     <volume>955</volume> 
     <category></category> 
    </ad> 
    <ad> 
     <type>2</type> 
     <name>Mitsubishi</name> 
     <model>Pajero 2.5 TD</model> 
     <regyear>1987</regyear> 
     <price>59000</price> 
     <adtext>1987 Mitsubishi Pajero 2.5 TD, Stv. 4x4, dragkrok, servo, mycket utr., ingen rost. Pris 59.000 kr,-. </adtext> 
    </ad> 
</autoads> 

正如你可以看到我們有所有類型的汽車。 現在他們都有一個總價。 我到目前爲止所做的是這樣的。

<?xml version="1.0" encoding="UTF-8"?> 

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> 

<xsl:template match="/autoads"> 
<html> 
    <body> 
    <h2>Bilar</h2> 
    <table border="1"> 
     <tr bgcolor="#9acd32"> 
     <th>Antal Äldre än 1999</th> 
     <th>Antal Yngre än 1999</th> 
     <th>Antal Automat</th> 
     <th>Antal Ej Automat</th> 
     <th>Genomsnitts pris för bilar äldre än 19999</th> 
     <th>Genomsnitts pris för bilar ungre än 19999</th> 
     </tr> 
     <tr> 
     <td><xsl:value-of select="format-number(count(ad[regyear &lt;= '1999']), '0')"/> </td> 
     <td><xsl:value-of select="format-number(count(ad[regyear &gt;= '1999']), '0')"/></td> 
      <td> 
      <xsl:value-of select="format-number(count(ad[contains(adtext, 'automatic')]), '0')"/> 
      </td> 
      <td> 
      <xsl:value-of select="format-number(count(ad[not(contains(adtext, 'automatic'))]), '0')"/> 
      </td> 
      <td><xsl:value-of select="format-number(sum(ad[regyear &lt;= '1999']/price), '0.00')"/></td> 
     <td><xsl:value-of select="format-number(sum(ad[regyear &gt;= '1999']/price), '0.00')"/></td> 
     </tr> 


     </table> 
    </body> 
    </html> 
    </xsl:template> 
</xsl:stylesheet> 

但上面並沒有算出來的平均價格，我試圖用汽車的整個計數這樣

<xsl:variabel name="carsbelow19" select="format-number(count(ad[regyear &lt;= '1999']), '0')"/> 
    <xsl:variabel name="carsabove19" select="format-number(count(ad[regyear &gt;= '1999']), '0')"/> 

，然後用它們，因爲這

<td><xsl:value-of select="format-number(sum(ad[regyear &lt;= '1999'] div $carsbelow19), '0.00')"/></td> 

但這給了我一個錯誤。所以我不認爲我可以使用整個變量，並將現有的汽車作爲一個「div」。

有人知道一個解決方案或可以指出我在正確的方向嗎？ 謝謝！

Answer 1

試試這個方法嗎？

XSLT 1.0

<xsl:stylesheet version="1.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> 

<xsl:template match="/autoads"> 
    <html> 
     <body> 
      <h2>Bilar</h2> 
       <table border="1"> 
        <tr bgcolor="#9acd32"> 
         <th>Antal Äldre än 1999</th> 
         <th>Antal Yngre än 1999</th> 
         <th>Antal Automat</th> 
         <th>Antal Ej Automat</th> 
         <th>Genomsnitts pris för bilar äldre än 19999</th> 
         <th>Genomsnitts pris för bilar ungre än 19999</th> 
        </tr> 
        <xsl:variable name="carsbelow19" select="ad[regyear &lt;= '1999']"/> 
        <xsl:variable name="carsabove19" select="ad[regyear &gt;= '1999']"/> 
        <tr> 
         <td> 
          <xsl:value-of select="count($carsbelow19)"/> 
         </td> 
         <td> 
          <xsl:value-of select="count($carsabove19)"/> 
         </td> 
         <td> 
          <xsl:value-of select="count(ad[contains(adtext, 'automatic')])"/> 
         </td> 
         <td> 
          <xsl:value-of select="count(ad[not(contains(adtext, 'automatic'))])"/> 
         </td> 
         <td> 
          <xsl:value-of select="format-number(sum($carsbelow19/price) div count($carsbelow19), '0.00')"/> 
         </td> 
         <td> 
          <xsl:value-of select="format-number(sum($carsabove19/price) div count($carsabove19), '0.00')"/> 
         </td> 
        </tr> 
       </table> 
     </body> 
    </html> 
</xsl:template> 

</xsl:stylesheet> 

---

注：你，包括1999年在都變量。我相信你需要從其中一箇中刪除=。