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.