CURSOR
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CURSOR

            CLIC\CURSOR [mode]

        Call  the  interactive  cursor,  if  available on your graphic terminal.
        This enables you to measure point  coordinates  and  perform  some  data
        editing on the result of a PLOT command.

        After  pressing any key, one of the data points is selected according to
        the argument `mode'. In mode D the closest data point from the cursor is
        selected;  in mode X (the default) the data point with closest X coordi-
        nate is selected; in mode Y the data point with closest Y coordinate  is
        selected.

        The following actions are possible:

          - Press any key to get the coordinates of the selected point.

          -  Press  'H'  to display some header information of the selected scan
            (as with LIST command).

          - Press 'K' to delete the selected point from the current plot buffers
            (type  PLOT  SAME to replot the buffers). This may be very useful to
            remove corrupted points from the buffers e.g. before  fitting  cali-
            bration curves.

          - Press 'N' to initiate a new range for  Ignore,  Tag,  and  Flag (see
            below).  This works only with time-like plots,  and  is to  be  used
            preferrably   with coordinates that are monotonous functions of time
            (scan number, observation number, time, ...)

          - Press 'I' to ignore all scans in the current   range  (initiated  by
            'N').   This is equivalent to typing the IGNORE command for the same
            scans.

          - Press 'T' to tag all scans in  the  current  range   (initiated   by
            'N').   This  is  equivalent  to typing the TAG command for the same
            scans.  You will be prompted for a quality code in the range   0  to
            9  (see  TAG  command).  The  quality codes are stored in the output
            file, which must be equal to the input file.

          - Press 'F' to flag all records in the  current  range  (initiated  by
            'N').   You will be prompted for a list of flags (see FLAG command).
            These flags will affect the baseline or antenna corresponding to the
            box  you  are  pointing  at. They will be stored in the output file,
            which must be equal to the input file.

          - Press 'E' to exit the cursor mode.