Subject: Re: Top n values
From: Dimitre Novatchev <dnovatchev@xxxxxxxxx>
Date: Thu, 17 Oct 2002 12:59:59 -0700 (PDT)
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--- Dan Diebolt wrote:
> I need to process the top n values in a list where n
> is dynamic. So if n=3 and I had the following XML:
>
> <root>
> <item>1</item>
> <item>5</item>
> <item>3</item>
> <item>2</item>
> <item>6</item>
> <item>4</item>
> </root>
>
> I need to process <item>'s with values 6,5,4. If I had
> captured n in a variable/parameter, what is the most
> efficient way to do this? What I want to avoid is walking
> the <item> nodset multiple times as there are a lot of
> <item>s (thousands). Thanks.
You can sort the node-set and produce the first three nodes.
Or you could use:
http://www.topxml.com/code/default.asp?p=3&id=v20010310050532
but it is not so efficient.
=====
Cheers,
Dimitre Novatchev.
http://fxsl.sourceforge.net/ -- the home of FXSL
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