我想获得以下内容的平均值
<SectorWeightings Currency="xxx">
<SectorWeightingsEntry Type="Sector Name||Sector Weight (%)" Value="A B||16.324500000000" Date="8/31/2011" />
<SectorWeightingsEntry Type="Sector Name||Sector Weight (%)" Value="C||16.744400000000" Date="7/31/2011" />
<SectorWeightingsEntry Type="Sector Name||Sector Weight (%)" Value="C S||10.177400000000" Date="8/31/2011" />
<SectorWeightingsEntry Type="Sector Name||Sector Weight (%)" Value="C S||8.8950000000000" Date="7/31/2011" />
<SectorWeightingsEntry Type="Sector Name||Sector Weight (%)" Value="E||12.841600000000" Date="8/31/2011" />
<SectorWeightingsEntry Type="Sector Name||Sector Weight (%)" Value="E||13.551700000000" Date="7/31/2011" />
<SectorWeightingsEntry Type="Sector Name||Sector Weight (%)" Value="Fi S||14.157900000000" Date="8/31/2011" />
<SectorWeightingsEntry Type="Sector Name||Sector Weight (%)" Value="Fi S||15.221200000000" Date="7/31/2011" />
<SectorWeightingsEntry Type="Sector Name||Sector Weight (%)" Value="H Care||12.508900000000" Date="7/31/2011" />
<SectorWeightingsEntry Type="Sector Name||Sector Weight (%)" Value="H Care||13.198200000000" Date="8/31/2011" />
</SectorWeightings>
作为前5行数值中的示例并计算平均值。
这是改进的代码
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:msxsl="urn:schemas-microsoft-com:xslt" exclude-result-prefixes="msxsl">
<xsl:template match="/">
<html>
<body>
<h2> zzzzzzzzz </h2>
<table style="width:50%;font-size:12px;" cellspacing="0" cellpadding="0">
<tr style="width:50%; text-align:left;background-color:E6F1F9;">
<th> xxxxx </th>
<th> yyyyy </th>
</tr>
<xsl:apply-templates
select="FundPricePerf/Group[@Name='xxxxx']/SubGroup[@Name='S']
/Fund[@FundCode='vv']/SectorWeightings
/SectorWeightingsEntry[@Type='Sector Name||Sector Weight (%)']">
<xsl:sort select="substring-after('||', @Value)" data-type="number"
order="descending" />
</xsl:apply-templates>
</table>
</body>
</html>
</xsl:template>
<xsl:template match="SectorWeightingsEntry">
<xsl:if test="position() <= 5">
<tr>
<td>
<xsl:value-of select="format-number(substring-after(@Value, '||'), '#.#')"/>
</td>
</tr>
</xsl:if>
</xsl:template>
</xsl:stylesheet>
有人可以帮我计算平均值吗？我需要继续上面的代码。
答案 0 :(得分：3)
您可以像sum()，div和count()那样使用...
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:exsl="http://exslt.org/common"
xmlns:so="http://stackoverflow.com/questions/14606819"
exclude-result-prefixes="xsl exsl so">
<xsl:output indent="yes" omit-xml-declaration="yes" />
<xsl:strip-space elements="*" />
<xsl:template match="/">
<average>
<xsl:variable name="weights">
<xsl:apply-templates select="*/SectorWeightingsEntry/@Value" mode="extract-weight" />
</xsl:variable>
<xsl:variable name="w" select="exsl:node-set($weights)/so:weight" />
<xsl:value-of select="sum( $w) div count( $w)" />
</average>
</xsl:template>
<xsl:template match="@Value" mode="extract-weight">
<so:weight>
<xsl:value-of select="substring-after(.,'||')" />
</so:weight>
</xsl:template>
</xsl:stylesheet>
这会产生......
<average>13.362079999999997</average>
答案 1 :(得分：1)
请试一试：
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:msxsl="urn:schemas-microsoft-com:xslt" exclude-result-prefixes="msxsl">
<xsl:template match="/">
<xsl:variable name="items"
select="FundPricePerf/Group[@Name='xxxxx']/SubGroup[@Name='S']
/Fund[@FundCode='vv']/SectorWeightings
/SectorWeightingsEntry[@Type='Sector Name||Sector Weight (%)']" />
<html>
<body>
<h2> zzzzzzzzz </h2>
<table style="width:50%;font-size:12px;" cellspacing="0" cellpadding="0">
<tr style="width:50%; text-align:left;background-color:E6F1F9;">
<th> xxxxx </th>
<th> yyyyy </th>
</tr>
<xsl:apply-templates select="$items">
<xsl:sort select="substring-after(@Value, '||')" data-type="number"
order="descending" />
</xsl:apply-templates>
</table>
<xsl:call-template name="ShowAverage">
<xsl:with-param name="items" select="$items" />
</xsl:call-template>
</body>
</html>
</xsl:template>
<xsl:template match="SectorWeightingsEntry">
<xsl:if test="position() <= 5">
<tr>
<td>
<xsl:value-of select="format-number(substring-after(@Value, '||'), '#.#')"/>
</td>
</tr>
</xsl:if>
</xsl:template>
<xsl:template name="ShowAverage">
<xsl:param name="items" />
<xsl:variable name="sumTopItems">
<xsl:choose>
<xsl:when test="$items">
<xsl:apply-templates select="$items" mode="sumItems">
<xsl:with-param name="items" select="$items" />
<xsl:sort select="substring-after(@Value, '||')" data-type="number"
order="descending" />
</xsl:apply-templates>
</xsl:when>
<xsl:otherwise>0</xsl:otherwise>
</xsl:choose>
</xsl:variable>
<xsl:variable name="itemsToAvg"
select="5 * (count($items) >= 5 or not($items)) +
count($items) * (count($items) < 5)" />
<xsl:value-of select="concat('Average: ',
format-number($sumTopItems div $itemsToAvg, '#.#'))"/>
</xsl:template>
<xsl:template match="SectorWeightingsEntry" mode="sumItems">
<xsl:param name="items" />
<xsl:param name="limit" select="5" />
<xsl:param name="tally" select="0" />
<xsl:if test="position() = 1">
<xsl:if test="$limit <= 0">
<xsl:value-of select="$tally"/>
</xsl:if>
<xsl:if test="$limit > 0">
<xsl:variable name="remaining"
select="$items[generate-id(.) != generate-id(current())]" />
<xsl:apply-templates select="$remaining" mode="sumItems">
<xsl:with-param name="items" select="$remaining" />
<xsl:with-param name="limit" select="$limit - 1" />
<xsl:with-param name="tally"
select="$tally + substring-after(@Value, '||')" />
<xsl:sort select="substring-after(@Value, '||')" data-type="number"
order="descending" />
</xsl:apply-templates>
</xsl:if>
</xsl:if>
</xsl:template>
</xsl:stylesheet>
在示例XML上运行时的输出：
<html>
<body>
<h2> zzzzzzzzz </h2>
<table style="width:50%;font-size:12px;" cellspacing="0" cellpadding="0">
<tr style="width:50%; text-align:left;background-color:E6F1F9;">
<th> xxxxx </th>
<th> yyyyy </th>
</tr>
<tr>
<td>16.7</td>
</tr>
<tr>
<td>16.3</td>
</tr>
<tr>
<td>15.2</td>
</tr>
<tr>
<td>14.2</td>
</tr>
<tr>
<td>13.6</td>
</tr>
</table>Average: 15.2</body>
</html>