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Re: [xsl] Get to 2 max values and element names


Subject: Re: [xsl] Get to 2 max values and element names
From: Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>
Date: Fri, 11 May 2012 17:24:27 -0400

William,

I believe MSXML has a node-set() extension (indeed it was an early processor to demonstrate it), so Michael's code in this thread may suggest a way forward.

Note that you will have to do a little extra work, since the code as given appears to assume transparent (i.e. traversible) result tree fragments -- such as you have in a 2.0 processor. They would have to be made into honest XSLT 1.0 node sets, but if you're lucky, he's done most of the hard work for you. :-)

Cheers,
Wendell

On 5/11/2012 2:58 PM, W Charlton wrote:
Wendell,

I thought temporary trees would come up. This transform is actually done in two stages so that is possible and is possibly the way I will go using xsl's sort-by which would be the obvious route I guess. I was trying to avoid putting too much math(s) in the first transform as the first xsl is reused elsewhere.

We actually take some source data and transform it into a standard format and then do a second transform which is where I need to use the 4 values to do some other stuff; along the lines of:

	<xsl:choose>
		<xsl:when test="(PenultValue div TopValue)&gt; 0.3">
			<xsl:text>In this test</xsl:text>
			<xsl:value-of select="TopName"/>
			<xsl:text>  was over 30% more effective than</xsl:text>
			<xsl:value-of select="PenultName"/>
		</xsl:when>
		<xsl:when test="(PenultValue div TopValue)&gt; 0.5">
			<xsl:text>In this test</xsl:text>
			<xsl:value-of select="TopName"/>
			<xsl:text>  was over twice as effective as</xsl:text>
			<xsl:value-of select="PenultName"/>
		</xsl:when>
		... You get the idea
	</xsl:choose>

We COULD also interrupt the second or even intercept the data before the first transform and poke the data into SQL and spit it out again and inject our 4 elements. But I was curious to know if there was some way known of doing this with recursion or keys or something, completely in XSLT (1) using MSXML ;).
Extension functions could also be used if need be.

For information the modifiers are hard coded so that if<Modifier/> = x then the four values are set as in:

When the Modifier = 1, the 4 Modifying vars are:
vSteveMod = 1.62
vHelenMod = 2.65
vJackMod = 0.34
vPetraMod = 1.3

When the Modifier = 2, the 4 Modifying vars are:
vSteveMod = 3.85
vHelenMod = 0.89
vJackMod = 6.5
vPetraMod = 14.6

When the Modifier = 1, the 4 Modifying vars are:
vSteveMod = 0.05
vHelenMod = 0.22
vJackMod = 0.22
vPetraMod = 2.85
etc...
Mathematically random

You have the whole weekend, make it a good one.

William Charlton
The yMonda team
yMonda Limited
w: www.ymonda.net


-----Original Message----- From: Wendell Piez [mailto:wapiez@xxxxxxxxxxxxxxxx] Sent: 11 May 2012 16:34 To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx Subject: Re: [xsl] Get to 2 max values and element names

William,

On 5/11/2012 9:36 AM, W Charlton wrote:
All using XSLT1

Your requirements more or less demand the use of temporary trees and pipelining. Can you use at least use a node-set() extension function, or would you be forced to pipeline on the file system?

XSLT 1.0 was explicitly not designed for this sort of transformation.

In XSLT 2.0, it would be a fun little problem (for those who consider
such little problems fun).

Cheers,
Wendell


-- ====================================================================== Wendell Piez mailto:wapiez@xxxxxxxxxxxxxxxx Mulberry Technologies, Inc. http://www.mulberrytech.com 17 West Jefferson Street Direct Phone: 301/315-9635 Suite 207 Phone: 301/315-9631 Rockville, MD 20850 Fax: 301/315-8285 ---------------------------------------------------------------------- Mulberry Technologies: A Consultancy Specializing in SGML and XML ======================================================================


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