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Re: Calculate the average line length within variable

Subject: Re: Calculate the average line length within variable name="lines" as="element()*" not including the last line
From: Martin Honnen <Martin.Honnen@xxxxxx>
Date: Mon, 12 Apr 2010 11:57:27 +0200
Re:  Calculate the average line length within variable
Alex Muir wrote:

 <xsl:variable name="lines" as="element()*">
      <xsl:analyze-string select="text()" regex="'">
          <xsl:element name="line">
            <xsl:attribute name="length"
            <xsl:attribute name="text" select="."/>

I can get the average like so including the last line

<xsl:variable name="averageLineLength"
          select="round(avg($lines/@length))" as="xs:double"/>

I can get the last line length without error

<xsl:variable name="averageLineLength"
          select="round(avg($lines[last()]/@length))" as="xs:double"/>

However in the case where my number lines is greater than 2 <xsl:when test="$numberLines ge 2"> I don't want to include the last line as part of my count and was trying the following

<xsl:variable name="averageLineLength"

Which gives me the error:

Description: An empty sequence is not allowed as the value of variable

I don't see any code with a variable named "averageSpaceNormalizedLineLength" in your snippets above so it seems as if you have not posted the relevant code.


	Martin Honnen

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