LOAD

        [CLEAN\]LOAD Variable

    Define Variable (CLEAN, DIRTY, RESIDUAL and BEAM) to be the item  to  be
    plotted  (for  RGMAP  and  PLOT  for example). Used in particular by the
    procedure
            @ PR:P_PLOT Variable [First [[Last]]
     which will plot all channels of the specified variable.  This procedure
    is available simply by typing
            SHOW Variable [First [[Last]]
    First (default: 0) and Last  (default:  First)  are  optional  arguments
    indicating  the first and last channel to be displayed. If not specified
    the variables FIRST and LAST are used.

    Several  variables  control  the  aspect  of  the  display.   DO_CONTOUR
    indicates  whether contour levels should be drawn, DO_BIT whether bitmap
    should be displayed., tc. The same variables as with the