Re: Unions and/or temporally related groups

On Mon, 16 Jul 2001 09:52:26 -0400, Tony Click wrote:

>Thanks for the comments and suggestions on how to solve my union problem.
>I've found a solution, albeit an ugly one.
>
>To quickly revisit, the problem was how to detect in a time ordered set of
>elements whether the subsequent element had nodes that had similar values
>(excluding the acutally data value)
>
>
>
><xsl:variable name="nextTimeInterval"
>select="following-sibling::timeInterval[1]"/>
>
>count ($nextTimeInterval[@channelId =
>$currentTimeInterval/@channelId][@parameterSetId =
>$currentTimeInterval/@parameterSetId ]) != count ($currentTimeInterval)
>
>
Wont this miss
     channel = '1' parameterSetId='1'
followed by
     channel = '1' parameterSetId='1'
     channel = '2' parameterSetId='2'
?
I think you need to check count($nextTimeInterval)
 !=count ($currentTimeInterval)
as well.

And it would be as well to test

     channel = '1' parameterSetId='1'
     channel = '2' parameterSetId='2'
followed by
     channel = '1' parameterSetId='2'
     channel = '2' parameterSetId='1'

and similar evil combinations.


Regards,
Trevor Nash
--
Traditional training & distance learning,
Consultancy by email

Melvaig Software Engineering Limited
voice:     +44 (0) 1445 771 271 
email:     tcn@xxxxxxxxxxxxx

 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list