UV_RESIDUAL

        [CLEAN\]UV_RESIDUAL [MODE] [Arg1 ... ArgN] [/FIELDS List]

      This command subtract Clean components OR fit results from the last UV_FIT
    command, depending on specified argument MODE if present (can  be  CLEAN  or
    UV_FIT),  or  on  whether  CLEAN (or its specialized versions HOGBOM, CLARK,
    etc...) or UV_FIT was done last if not. The residual UV data  are  available
    in  SIC  structure UV_RESIDUAL, and can be written by WRITE UV_RESIDUAL com-
    mand.

      The UV_RESIDUAL data can also be selected for further  imaging  by  UV_MAP
    (and  thus  UV_RESTORE)  or  displayed  by  SHOW UV using command UV_SELECT.
    MODEL and UV_RESIDUAL are  complementary  commands  (UV_DATA  =  UV_MODEL  +
    UV_RESIDUAL); see HELP UV_RESIDUAL Note however.

    For the Clean component the syntax is
        [CLEAN\]UV_RESIDUAL [CLEAN] [Niter]
    that  subtracts  the  Niter first (default all) Clean Components from the UV
    data.

    For the UV_FIT results, Clean component the syntax is
        [CLEAN\]UV_RESIDUAL [UV_FIT] [F1 .. Fn]
    that subtracts the F1 to Fn fitted functions (default all) from the UV data.