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    User name V. Sulkosky

    Log entry time 19:09:08 on October 29, 2007

    Entry number 210509

    keyword=Online Replay Instructions

    I have created a new script named: replay. You can find it in the
    onlana directory for the CSR experiment. The script is user friendly
    and can take zero or up to three arguments. Typing 'replay help'
    displays the following usage summary:

    ------------------------------------------------------------------------
    Usage:
    'replay' or 'replay left' or 'replay Left'
    -> replay for LHRS, user will be asked for the run number
    'replay right' or 'replay Right'
    -> replay for RHRS, user will be asked for the run number
    replay help
    -> prints this message
    replay ####
    -> replay run ####
    replay #### #1
    -> replay run ####, for #1 events
    replay #### #1 #2
    -> replay run ####, for #1 events with overwrite flag #2
    with value 0 or 1
    in all cases the user can choose to overwrite
    the previous root file.
    please communicate comments to vasulk@jlab.org
    -------------------------------------------------------------------------


    The three arguments are

    1) run id info, which can take the following options:
    '', 'left', 'Left', 'right', 'Right' or a run number
    (without the qutoes of course).

    2) The number of events to replay: any integer greater than 0 or -1 to
    replay the all events.

    3) overwrite flag: 0 or 1. '1' will overwrite the root file
    if it already exists.

    Running 'replay' with options left, Left, right or Right can also
    be used with the second and third arguments.

    Notes:

    a) The macros replayRight.C and replayLeft.C, which are automatically run
    by replay, also provide the user with the option to do either detector or
    physics replay. After the replay has completed, the macro will
    automatically display the histogram gui displaying the results.

    b) The replay script will automatically run either replayLeft.C or
    replayRight.C based the user specified run number:
    replayLeft.C if run number < 20000
    or
    replayRight.C if run number > 20000.

    A copy of this log entry has been emailed to: camsonne@jlab.org,choi@jlab.org,jpchen@jlab.org,yoomin@jlab.org,meziani@jlab.org,xyan@jlab.org