APPLY

        [CALIBRATE\]APPLY [AMPLI|DELAY|PHASE [Gain]] [/FLAG [Threshold]]

      Apply gain solution computed by MODEL and  SOLVE  (which  are  called  im-
    plicitely  by  SELFCAL)   or obtained by READ CGAINS to the current UV data.
    The optional arguments indicate whether this should be an  AMPLITUDE,  DELAY
    or  PHASE  gain, and what Gain value is used (in range 0 to 1). A DELAY gain
    is derived from a Phase self-calibration assuming the Phase errors represent
    pathlength changes (i.e. delays): phase solution is  scaled  with  the  Fre-
    quency ratio of the self-calibration and UV data to be calibrated.

      If no argument is given, the current SELF_MODE (see HELP SELFCAL) is used,
    and the gain is 1.0.

    The  /FLAG  option  controls  whether data without a valid gain solution are
    kept unchanged or flagged. You can actually flag data  on  this  basis  even
    without applying the self-calibration solution.