timed threshold


    Jun 26 2006 | 2:08 pm
    hi
    This may seem an obvious one, but I need to report on and trigger from a rapidly changing float every time it (only) rises above a certain threshold from 0 value (max value 1) within a certain time. can I use thresh or peak or quickthresh or line or something like that?

    • Jun 28 2006 | 1:16 am
      Not sure I've got a handle on this completely, but I'd try something like...
      - start a timer when your signal drops below the threshold (or hits zero, etc.)
      - stop the timer when your signal rises above the threshold
      - evaluate the elapsed time and act if it's short enough.
      Almost every time I play with data and thresholds I go in search of Eric Singer's(?) hysteresis object. You might find it helpful, too.
      Good Luck.
    • Jun 28 2006 | 4:02 pm
      Richard Warp wrote:
      > This may seem an obvious one, but I need to report on and trigger
      > from a rapidly changing float every time it (only) rises above a
      > certain threshold from 0 value (max value 1) within a certain time.
      > can I use thresh or peak or quickthresh or line or something like
      > that?
      What about this?
      --
      Stefan Tiedje------------x-------
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