RE: [xsl] local extremums

[cknell@xxxxxxxxxx]

> saigo@xxxxxxxxxxxxx (Evgenia Firsova)
> I have a problem with determining local extremums
> (precisely - local maximums) of the list.
>
> I mean I need to realize next algorithm:
> 1. take the list (it is //PoketTourList/Country/Range on 
> first iteration)
> 2. determine the maximum @Cnt of this list
> 3. cast away this maximum and two his nearest neighbours
> 4. if line isn't empty than goto step 1
> So I need a list with any flag showing Range is local 
> extremum or not.
> Or I need a way to go throw whole list and determine if each 
> Range is local extremum or not on every step.

You can easily determine which element contains the Cnt attribute with the highest number using <xsl:sort>. I have written a stylesheet which outputs each Range element sorted by @Cnt in descending order. If you want to get only those which are *not* among the three highest (assuming no duplicate values among them), you need only work with those elements in the result tree with a position() value greater than 3.

Tell us what you want to do with the results (e.g., replicate the document while leaving out the three Range elements with the highest @Cnt value), and I'll refine the stylesheet to do that and post it.

-- 
Charles Knell
cknell@xxxxxxxxxx - email


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