On Tue, Oct 28, 2008 at 12:23 AM, Ian S. Worthington <[EMAIL PROTECTED]> wrote:
> I reckon I can do it with LOOKUP with a DROP n in the "add to" path. Is there > an easier way? The problem with this one (and Sir Mike's suggestion) is that the "take" or "drop" goes over the entire stream and not the run of records with the same key. At that point a sipping pipeline can do it because you could sip "whilelabel.." and then take the n records from that run. But overhead of that approach is a bit higher, so it's better to put it in a straight pipe. I also like "juxtapose count" in this context. If the run is not identified by a common key but by a separator or so, then you can hold the start of a run in the juxtapose and the rest will be tagged with the sequence number within the run. I did something like that here: http://rvdheij.wordpress.com/2007/11/13/finding-unique-observations/ Rob
