SET PLOT

        CLIC\SET PLOT LINE|POINTS|HISTOGRAM|BARS
        CLIC\SET PLOT PHYSICAL|LOGICAL HEADER|IPB

    Selects the way the data are displayed.  "type" stands for LINE, POINTS,
    HISTOGRAM,  or BARS. With POINTS, the current GreG marker, as defined by
    the GREG\SET MARKER command, is used.  With BARS  (valid  only  for  the
    visibility data, i.e. amplitude, phase, real, or imaginary), 1-sigma er-
    ror bars are drawn.

    Can also force plotting physical antenna wiht SET PLOT PHYSICAL (can  be
    reverted with SET PLOT LOGICAL).

    Normally,  with  SET PLOT IPB (default), CLIC looks for the data headers
    (stored in the IPB file) even if one plots parameters in the observation
    (which  is  contained  also contained in the .hpb file). SET PLOT HEADER
    allows to bypass this check, but flags can be lost.