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SMOOTH

        ANALYSE\SMOOTH [Arg...]

    SMOOTH  copies R into T, then degrades the frequency/velocity resolution
    of R according to the selected method. If the R buffer also provides As-
    sociated  Arrays,  the  smoothing method is also applied to them, except
    for the method NOISE where this is not relevant. It is not yet  possible
    to provide a custom smoothing method for the Associated Arrays.

    The arguments are used to specify the method :
      - HANNING (default)
        The  new spectrum has twice less channels and twice less resolution.

      - GAUSS Width
        Convolves (by multiplication in the Fourier plane) by a gaussian  of
        specified  width  in  current  X units. Because this method does not
        support bad values in the Fourier plane, bad channels  are  interpo-
        lated before use.

      - BOX Nchan
        Averages  Nchan  adjacent  channels to produce a spectrum with Nchan
        less resolution and channels.

      - NOISE Flux Nc
        For each channel, sums at most Nc neighbouring channels until a  to-
        tal  flux  Flux  is  reached in the sum. Then attributes the average
        value (sum divided by number of channels added) to the channel. This
        smoothing is non-uniform, strictly positive, and has an obvious ten-
        dency to produce wings...


Gildas manager 2018-11-19