[19308] in s-news-athena
[S] another challenge
daemon@ATHENA.MIT.EDU (Robert Anthony Canales)
Thu Sep 23 20:24:44 1999
Date: Thu, 23 Sep 1999 17:18:18 -0700 (PDT)
From: Robert Anthony Canales <rcanales@leland.stanford.edu>
To: s-news@wubios.wustl.edu
Message-Id: <Pine.GSO.3.96.990923165528.20378A-100000@elaine14.Stanford.EDU>
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Hello,
I've got another challenge for the user group. I have a file of
sequential simultaneous events (1,2,3) with the duration (in seconds) for
these simultaneous occurrences. The files range from 2 hours to 8 hours
and I need to run statistics on segments of 15 min. So I need to cut the
file into segments of 15 minutes based on the duration column. I am
attempting to write a function that uses the value of the cumulative sum
of the duration column, but this seems very inefficient and requires
coding for several conditions for breaking files if a cut off point occurs
between or on a duration value.
For example, a file may appear as:
event1 event2 event3 duration
A X L 333
A Y L 250
A X M 507
B X L 100
...
and we would want it to be segmented into:
A X L 333
A Y L 250
A X M 317
and
A X M 190
B X L 100
...
any help/hints are appreciated..thanks
Robert
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