Keywords: imager

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## Data flagging

Self-calibration is intended to improve upon a basically good solution.

When corrections are too large, it may be wise for the user to flag data that suffer from excessive corrections. This is possible a posteriori (i.e. after a magenta`SELFCAL APPLY` command) using command magenta`SELFCAL FLAG` as below

      selfcal flag [Threshold]

`Threshold` is the correction above which data should be flagged (in degrees for Phase or Delay, no units for Ampli). Like for magenta`SELFCAL APPLY`, the current value of blue`SELF_MODE` is used to determine the mode.

Apart from minor verifications and messages upon the self calibration solution validity, the command is equivalent to command magenta`APPLY /FLAG`

      apply 'self_mode' 0 /flag [Threshold]